This is a brush specifically designed for ChuChu baby bottle nipples. It uses a soft sponge material to gently clean delicate nipple parts without causing damage. The fit design makes it easy to wash every corner, removing even fine dirt. 【Features】 Wave Sponge: Uses a soft material that easily fits the shape of the nipple. Fit Handle: Comfortable to use with a curved handle that is easy to grip. With Hook: Convenient design that allows you to hang it up for storage when not in use. 【Materials】 Sponge: Polyurethane Handle: Polypropylene 【Heat Resistance】 Sponge: 80°C (176°F) Handle: 120°C (248°F) 【Condition】 New, Unopened 【Precautions】 Please check the precautions on the package before use.