Material Silicone Colour light blue/orange/yellow Item dimensions L x W x H 7 x 1.5 x 1.5 centimetres Item weight 20 Grams Care Instructions Machine Wash Chew Necklace - Our set of Sensory Chewing Necklaces provides a safe, therapeutic outlet for fidgeting, biting, anxiety and stress, producing a calming effect for kids and adults. Eliminating chewing on hair or clothing, each sensory toy is also great to reduce nail-biting and thumb sucking. Colors that Reduce Stress and Anxiety - Studies have shown that bright, vibrant colors can induce aggression, hyperactivity and sensory overload. Our pendants come in calming and soothing color tones that are perfect for kids with sensory needs autism, ADHD, SPD and those who are aggressive chewers. Easy Breakaway Clasps for Safety - Each chew pendant features a breakaway clasp to facilitate safe biting while preventing choking and accidents. Our set contains great oral motor chew jewelry for small boys and girls that is also appropriate for men, women and teens. Non-toxic, 100% Food-Grade Silicone - Our chew products are free of BPA, latex, phthalates, cadmium, lead, or metals. The high-quality silicone chew necklaces are completely safe to use.