This is a set of Eco Bottle Brush, that produced by Tupperware Brands. It is a MUST HAVE brush for all Eco bottle users. Its 39cm long handle allows you to clean the inner part of the eco bottle perfectly. The eco bottle brush is designed to be - 1 fit for all size , it can use to clean the eco bottle of , 7ml, 0ml or even the 310ml. The hair of the brush itself is hard enough, to clean the stubborn stains inside the eco bottle itself. Plus, it wont leave any scratches on your eco bottle even though you clean it with your full strength? Reasons WHY you must choose Eco Bottle Brush: - Normal milk bottle brush hair is too soft, unable to clean the stains effectively. - Nomal milk bottle brush handle is too short, you can't clean the Eco bottle effectively. - Normal brush hair is not as durable as like the Eco Bottle Brush. Only Eco Bottle Brush able to clean your eco bottle effectively! It uses soft and hard bristles for optimum cleaning of multiple surfaces.