Description Made of stainless steel, nylon and cotton ball material, which is for cleaning cups and flasks, test tube, vase, etc. They are very useful and have no harm to the surface of flasks. They can be used for cleaning the bottom of cups due to their long handle, convenience and good to use. Features -Color: White. -Material: Stainless steel, nylon, cotton ball. -Size: About 28.00X2.50X2.50cm/11.00X0.98X0.98in. -The supple brush head cleans deeply and is more flexible without damaging the cups. -Strong to last gentle to prevent scratching, strong twisted stainless steel handles make them a crevice cleaning tool. -Sturdy and durable, small hole at the end of the handle convenient to suspend. -This very practical universal brush is used to clean cups, bottles, test tubes, beakers, and many more. -The brush head is a cotton ball and can be tender and absorbent, so it will not damage the inner wall of the cup when cleaning. Package list: 4 x Brushes