Material: Plastic Diameter: 17mm/0.67" Color:as the picture show Hard and durable, not easy to break. Can be used to cover the screw holes to hide the screw head and protect the screws from rust. Easy to use with just a snap for square X screws, #2 square drive screws or eccentric wheels. Can be applied in many different situations, such as cabinets, furniture, shopfitting, cupboards. Package includes: 100pcs/bag* screw cap Friendly Tips: The size is measured by hands, please allow minor error of measurement. Photo color might be a little different from the actual product due to color display of different monitors.