Product Description Material: Food Grade Silicone Size: 7*2*1.2cm Color: Blue, Red, Green, Purple Chew Chains Our sensory chew necklaces are made of high quality silicone to meet your requirements. They are durable, tough and soft with healing and soothing effects. 2. Colors that reduce stress and anxiety Bright, bright colors have been shown to cause aggression, hyperactivity, and flooding of stimuli (especially yellow, orange, or bright red). Our chewable labels are coloured soothing and soothing. Great for fidgeting, autistic, ADHD, active chewing, SPD kids. 3. Easy to remove fasteners for safety Our chewing chains come with break clasps for safer bite, suffocation and prevent accidents. Good quality oral motor chewing jewelry for little boys and girls.4.Non-toxic food grade silicone products do not contain BPA, latex, phthalates, cadmium, lead or metals. Also suitable for adults (men and women) as well as teenagers. 5. Long lasting and suitable for most children Silicone Sensual Chewable Necklaces are made of durable silicone material, which is highly chewy.