combination: you will receive 8 stainless steel standoff screws sets, including 8 standoff screws, 8 screws, 8 Expansion screws, combination and sufficient can meet your demands and replacements Appropriate size: 19x30mm, proper size is easy to use and will bring you a satisfactory using experience, confirm the size purchasing to use: the standoff hardware is made of stainless steel, which ensures strength and lightweight on the of lightweight and easy to use, rustproof, scratch-proof and corrosion-resistant, support to use for long-lasting usage Wide range of application: these wall sign mounting hardware are good for company, office, , shops, bedroom, such as glass sign, acrylic sign, acrylic plate, acrylic picture frame indoor and outdoor advertising boards, photo Easy to install: install the expansion tube into the wall and fix the standoff screw with screw, the contact surface between the screw and the product is ; note that screws require a screwdriver to assist the mounting of the standoff screw Material:Stainless steel colour:gold Package Contents: 8 * Standoff screws 8 * Screws 8 * Expansion screws Only the above package content, other products are not included. Note: Light and different displays may cause the color of the item in the picture a little different from the real thing. The measurement allowed error is +/- 1-3cm.