1.Bottle brush works on all major regular size bottles. Nipple brush is perfect for nipples, smaller bottles, pump parts and other accessories. 2.Special-design sponge cleans the entire internal surface of bottles, including hard-to-reach corners and bottoms. Soft sponge does not scratch bottles and nipples. 3.PP No smell,No toxic. 4.Easy to take out sponge for throughout cleaning. Eco-friendly polypropylene (PP) handle with non-slip textured grip.The hook provided help to hang it for drying and storage. 5.The bottle brush cleaner is special-design with sponge and long durable handle could easy to clean the entire internal surface of bottles, including hard-to-reach corners and bottoms. Soft sponge does not scratch bottles and nipples.360 degrees no dead angle clean.The brush head can also quickly let the bubble rich, you can reduce the waste of waste.It is a good helper for home cleaning.