●Set Contents: Knock pins 0.1 x 0.7 inches (3 x 18 mm), 100 pieces (+/-2%) ●Size: Dowel pin diameter: 0.1 inch (3 mm), length: 0.7 inch (18 mm), color: silver ●Material: The cylindrical pins are made of 304 stainless steel, and the surface is very smooth, rust resistant, and durable ●【APPLICATION】 Pins are non-threaded cylindrical fasteners to secure component location, join components, and maintain alignment between them ●【NOTE】: Your hole should be equal or slightly smaller to the indicated diameter (less than 5mm) in order to ensure a tight fit