Silicone Teethers Can Be Washed On The Top Shelf Of The Dishwasher And Can Be Hand-Washed With Mild Soap, Easy To Clean. There Are Sensory Points And Texture Design On The Back, Which Is Convenient For The Baby To Grasp And Stimulate The Gums.Colored Teether Is Designed To Stimulate Your Baby?S Visual, Motor And Sensory Skills. It Also Helps Develop Hand-To-Mouth Coordination