Description:1. Material: Stainless steel makes standoffs smooth and bright in surface, solid and modern, with great durability and dependability.2. Advantages: Adjustable screw cap, solid screw teeth. The matching rubber gasket makes the screws more fit and not easy to fall off.3. Application: Screws holders usually used to support and fix acrylic and glass plates, and can also support glass plates on wooden bases. It can be used for fixed advertising display boards, photos, and many other uses. Suitable for homes, offices, restaurants, shops, and other places.Note: Screw Mounting Accessories are not included.Specification:Total Size: 24 x 16mm/ 0.95" x 0.63"(L*D)Thread Size: 18 x 9.7mm/ 0.71" x 0.38"(L*D)Bottom Hole Diameter: 4.8mm / 0.19"Rubber Spacer Thickness: 1.3mm / 0.05"Screw Nail Cap Thickness: 5mm / 0.