●Product Specifications: Set of 2, Standard: 1/4 size, Material: Stainless steel, Size: Height 0.8 inches (2.1 cm), Diameter 0.5 inches (1.2 cm) ●Material: Stainless steel screws are highly corrosion resistant, rust resistant, lightweight and durable, so they can be firmly secured without damaging your camera or heads ●Easy to install: Comes with a convenient D-ring, so it is a screw that can be tightened by hand. It is easy to install and remove, so it is recommended for those who frequently change their equipment ●Convenient to Operate: The precision finish makes it easy to use in every detail while also making it very useful for assembling equipment. Use when installing a tripod, monopod, or head head. Convenient item for photographing ●Wide range of uses: Supports tripod / monopod mounting screws, selfie sticks, camera flashlights, heads, and other photographic equipment