A) Pigeon nylon brush Enables 2 different ways of washing bottles B)The unique handle enables bottles to be washed in 2 different ways:- i)Vertical Wash - Use the brush handle and bristles in straight up and down action. Ii)Circular Wash - Hold the handle firmly and rotate the brush inside the bottle. C)Convenient and Easy to Use D)Special plastic coating on handle prevents damage to the mouth of bottle. E)The high density tip of Nylon Brush removes even stubborn dirt in bottle