Safe for KidsOur 5pcs baby teethers are made of 100% food grade silicone, non-toxic and BPA free. The bite is comfortable, the softness is moderate, and the tear resistance is strong. Baby teething relief won't be broken by teeth and protects babies' delicate mouth. special needs or general dental pain. They help to significantly reduce anxiety and stress for people with sensory impairments and provide a safe alternative to chewing on clothes, pens, desk, hands. Adjustable and Detachable Safety Cord baby chews are equipped with an adjustable and detachable safety cord to ensure the safety of your loved ones. You can control the length of the safety lanyard by adjusting the connector on the safety lanyard. Different Textures for Sensory SenseThe collars have both larger bumps and small round bumps to meet different needs sensory. They are durable and hard-wearing. Easy to clean and storeOur chew toys are easily cleaned by hand with soap and water to kill bacteria, or just as easily placed in the dishwasher to remove any unwanted dirt and grime after a possible fall from a purse or stroller.