HIGH QUALITY - made of High Quality Aluminum. Highest forms of corrosion resistance. Great for both indoor and outdoor use. GREAT USES - Ideal for sheet metal work, gutter repair, door repair, securely fastening metal and heavy fabric in different construction and repair applications, can be used for automotive, aviation, railway, elevator, instrument, furniture. DIMENSIONS - Diameter 1/4"(6mm), Length: 1"(25mm). Quantity: 25 pcs