Red + Ocean Blue Sensual Chew Necklaces; Our sensual chew collars are made of the highest quality silicone to best suit your needs; they are durable and resistant yet gentle, healing and soothing; also great for stopping nail biting or thumb sucking. Colors to reduce stress and anxiety; studies have shown that bright, vibrant colors can lead to aggression, hyperactivity, and sensory overload (especially bright yellows, oranges, or reds); our pendants are available in soothing tones; perfect for moving, autism, ADHD, aggressive. chewers, SPD kids. Easy-to-remove safety buckle; Our chew toys come with a removable buckle to make biting safer and prevent choking and accidents; Chew jewelry for little boys and girls. 100% non-toxic food grade silicone; our products do not contain BPA, latex, phthalates, cadmium, lead or metals; also suitable for adults (men and women) and teenagers.