The surface is smooth, delicate and does not hurt your hands. Easy to match kinds of curtains, you can replace the broken blind stoppers at home, simple and convenient, you do not need to replace the entire shutter, so save time and effort. Features - Color: Light Grey - Material: Plastic, aluminium alloy - Size: 6.00X2.50X2.50cm/2.36X0.98X0.98in - Safe and convenient to use, not easy to break or deform, reusable and can be applied for longtime. - The roller shutter buffer stoppers can be mounted on the lower roller shutter profile. - The stoppers are suitable any roller shutter with a webbing or with a crank handle. - Replace your old or broken parts with our useful fittings, convenient for replacing use. - Simple in structure, easy to use, strong and not easy to fall off, you can use it with confidence. Package list: 16 x Buffer Stoppers