These are made of stainless steel and nylon materials and are safe to use. Used for cleaning cups, bottles, test tube, etc., with a long handle design, suitable for cleaning the inner wall of the bottle, and easy for mothers to carry, which is very convenient and practical. Features - Color: Silver - Material: Stainless steel, Nylon - Size: 23.00X3.00X3.00cm,20.00X1.00X1.00cm,100.00X1.30X1.30cm/9.04X1.18X1.18in,7.86X0.39X0.39in,39.30X0.51X0.51in - It is made of nylon and stainless steel materials of high-grade and is safe to use. - This very practical universal brush is used to clean cups, bottles, teacups, etc. - The handle design can clean the inner wall of the bottle and the . - It is easy to take along and does not take up much space for users to store in the cabinet. - The brush can help you clean the bottom of the cup that is difficult to clean, so that your life is full of cleanliness and . Package list: 30 x bottle