Simba Two Way Bottle Brush has a ball-shaped bottle brush tip that efficiently removes stains. It includes a stainless fastner steel bristle and the brush fits various sizes of bottles. The bristle is made of high quality nylon that is durable, nontoxic and hygenic. Material: Bristles - Nylon, Handle: PP, Bristle fastener: Stainless steel. Warnings and care: Use to clean bottle only and do not sterilise it. Do not leave children unattended with this product.