Features: The tool nest is well machined, making it convenient for your storage and use. Made of high quality 304 stainless steel and environmental for protection copper, they are superior rust and corrosion resistance. Snaps with heavy-duty construction assures a firm grip that will remain secure through years of use all stainless parts. The snap fasteners are widely used in boat, furniture, canvas, boats, yacht canvas car tent and more. They have superior rust resistance and the excellent of oxidation resistance, which ensures its long for time using both indoor or outdoor. Specifications: Color: Black bronze/ Silver Screw size: 15x10mm/ 0.59x0.39inches and 10x10mm/ 0.39x0.39inches Cap: 15mm/ 0.59inches Socket: 10mm/ 0.39inches Material: 304 Stainless Steel +Copper Package Includes: 1X60 Sets Snap Buttons note: Please allow 0-1cm error due to manual measurement. pls make sure you do not mind before you bid. Due to the difference between different monitors, the picture may not reflect the actual color of the item. Thank you!