The ARK Krypto-Bite® Chewable Tube Necklace is a chewable pendant necklace that gives children and adults a safe, discreet outlet for oral sensory input. It is designed for people with SEND or sensory needs who chew their shirt collars, sleeves, pencils or fingers, and offers a hard-wearing alternative that is always within reach.

How the Krypto-Bite Tube Necklace works

The Krypto-Bite Tube Necklace uses the same prism-shaped design as the ARK Krypto-Bite® Gem Necklace, but the pendant hangs horizontally. The cord runs through the whole pendant rather than just the top, so bringing it up to the mouth mimics the familiar motion of pulling up a shirt collar to chew. This makes it a natural replacement for collar and sleeve chewing.

The pendant measures 5.6 cm (2.2 inches) wide and just under 1.3 cm (0.5 inches) in diameter. It is made from medical-grade elastomer in ARK Therapeutic's own factory in Columbia, South Carolina, USA, and comes on a 76 cm (30 inch) adjustable breakaway cord.

Choosing the right toughness

• Standard: the softest level, for mild chewers who do not chew through anything. Available in Red, Magenta, Dark Blue, Light Grey and Translucent Green.
• Medium (XT): firmer but still fairly chewy, for moderate chewers. Available in Lime Green, Teal, Black, Dark Red and Translucent Blue.
• Toughest (XXT): very firm and durable, for avid chewers. Available in Royal Blue, Forest Green, Lavender, Dark Grey and Translucent Red.

For schools

• Gives pupils with SEND a hygienic, personal chew tool in place of chewing uniform, pencils or classroom equipment.
• Colour-coded toughness levels help SENCOs, teaching assistants and occupational therapists match the right firmness to each pupil.
• Worn around the neck, so it stays with the pupil between lessons, at break time and on school trips.
• Can form part of the sensory provision set out in a pupil's support plan or EHCP.

For parents and home use

• Helps protect school uniform and clothes from collar and sleeve chewing.
• Quick to clean by hand or on the top rack of the dishwasher.
• A jewellery-style design that children and teenagers are happy to wear.
• Suitable from 3 years of age with direct adult supervision.

Supporting SEND and sensory needs

Many children and young people with special educational needs and disabilities (SEND) seek oral sensory input by chewing. Chewing gives firm pressure through the jaw, which many people find calming and organising. A dedicated chew necklace gives this need a safe, appropriate outlet, rather than trying to stop the behaviour altogether.

Safety

Caution: This product is not a toy. It contains small parts that may pose a choking hazard and is suitable for ages 3 years and over with direct supervision. The clasp and cord are not intended for chewing. Inspect the pendant regularly and replace it at the first sign of wear. No chew tool is indestructible, and the lifespan of each pendant depends on how hard it is chewed. We are unable to offer refunds on chews that have been used.

Finding the right chew is often a process of trial and error. If you are unsure which toughness to choose, please contact our team for friendly advice.

• Horizontal tube pendant: the cord runs through the full pendant, mimicking the motion of pulling up a shirt collar to chew.
• Prism shape: the same faceted design as the ARK Krypto-Bite® Gem Necklace, giving a varied chewing surface.
• Pendant size: 5.6 cm (2.2 inches) wide and just under 1.3 cm (0.5 inches) in diameter.
• Cord: 76 cm (30 inch) adjustable breakaway cord.
• Material: medical-grade elastomer.
• Toughness levels: Standard (softest), Medium (XT, firmer) and Toughest (XXT, very firm).
• Colours: Standard - Red, Magenta, Dark Blue, Light Grey, Translucent Green. Medium (XT) - Lime Green, Teal, Black, Dark Red, Translucent Blue. Toughest (XXT) - Royal Blue, Forest Green, Lavender, Dark Grey, Translucent Red.
• Age: 3 years and over, with direct supervision. Suitable for children, teenagers and adults.
• Cleaning: handwash or top-rack dishwasher safe.
• Made in: Columbia, South Carolina, USA, by ARK Therapeutic.
• Included: 1 x pendant and 1 x breakaway cord.

• Replaces collar and sleeve chewing. The horizontal pendant mimics pulling up a shirt collar, so it feels familiar from the very first chew.
• Three toughness levels. Standard, Medium (XT) and Toughest (XXT) let you match the firmness to the chewer, from mild to avid.
• Built for SEND settings. A personal, wearable chew that stays with the pupil in class, at break time and at home.
• Made in the USA by ARK Therapeutic. Produced from medical-grade elastomer in ARK's own factory in Columbia, South Carolina.
• Fifteen colour choices. Five colours at every toughness level, including translucent options, so each child can pick a favourite.

What's in the Box

• 1 x Krypto-Bite® Tube pendant
• 1 x adjustable breakaway cord

Care and Cleaning

Wash by hand in warm, soapy water or place on the top rack of the dishwasher. Rinse and allow to dry before use. Spare ARK Breakaway Necklace Cords and ARK Dishwasher Cleaning Bags are available separately.

Delivery and Returns

Standard UK delivery applies. See our Delivery and Returns page for full details. For hygiene reasons, we are unable to offer refunds on chews that have been used.

Safety and Age Suitability

Contains small parts that may pose a choking hazard. Suitable for ages 3 years and over with direct supervision. The clasp and cord are not intended for chewing. Inspect regularly and replace at the first sign of wear.

• What is the ARK Krypto-Bite Chewable Tube Necklace?
  It is a wearable chew necklace with a prism-shaped pendant that hangs horizontally on a breakaway cord. Made by ARK Therapeutic from medical-grade elastomer, it gives children and adults a safe outlet for oral sensory input and is designed to redirect shirt collar and sleeve chewing.
• How is the Tube Necklace different from the Krypto-Bite Gem Necklace?
  The Tube Necklace pendant hangs horizontally, with the cord running through the whole pendant. On the Gem Necklace, the cord passes only through the top. The horizontal position mimics pulling up a shirt collar to chew, so the Tube version suits collar and sleeve chewers particularly well.
• Is the Krypto-Bite Tube Necklace suitable for children with SEND?
  Yes, it is designed for children and adults with sensory or special educational needs who seek oral input by chewing. It offers a safe, personal alternative to chewing clothing, pencils or fingers. Every child is different, so an occupational therapist can advise whether a chew necklace is the right choice.
• Can pupils wear the Krypto-Bite Tube Necklace in school?
  Yes, many schools use chew necklaces as part of their sensory provision for pupils with SEND. The breakaway cord is designed for safety, and the colour-coded toughness levels help staff check the right firmness at a glance. We recommend agreeing its use with the class teacher or SENCO.
• Which toughness level should I choose?
  Choose Standard for mild chewers, Medium (XT) for moderate chewers and Toughest (XXT) for avid chewers. Standard is the softest and suits those who do not chew through things. If a child has damaged other chews quickly, Medium (XT) or Toughest (XXT) is usually a better starting point.
• What age is the Krypto-Bite Tube Necklace suitable for?
  It is suitable for ages 3 years and over, with direct supervision. It suits children, teenagers and adults. The pendant contains small parts that may pose a choking hazard, so check it regularly and replace it at the first sign of wear.
• How do I clean the Krypto-Bite Tube Necklace?
  Wash it by hand in warm, soapy water or place it on the top rack of the dishwasher. Rinse and allow it to dry before wearing it again. Regular cleaning keeps the necklace hygienic for daily use at home and in school.
• How long is the cord and can it be adjusted?
  The necklace comes on a 76 cm (30 inch) adjustable breakaway cord. The length can be adjusted to suit the wearer. Neither the clasp nor the cord is intended for chewing, so encourage the wearer to chew only the pendant.