Standoff Mounts Size: Diameter: 0.748 inch, length: 0.98 inch, base length: 0.748 inch, cap height: 0.157 inch, thread Size: 0.86 x 0.31 inch (length * diameter). Professional-look Standoff: Made of high- stainless steel, BRUSHED STAINLESS FINISH AND LOOK CLEAN, corrosion-resistant and scratch-resistant. Mounting Hardware Kit: Come with ALL YOU NEED, including 8pcs sign standoffs, 16pcs rubber spacers, 8pcs screws and 8pcs wall anchors. No need to buy extra accessories. Glass Acrylic for Glass Artwork and Sign Display: The acrylic sign holder is designed to SUPPORT PANELS OF ACRYLIC, WOOD, ALUMINUM, glass, install modern dry erase boards , and hang glass paintings or artworks . Wall mounting screws are a good choice for office, supermarkets, shops, bedrooms, museum, restaurant and etc. Easy Installation: Install the plastic wall anchors into the wall and fix the standoff screw, the contact surface between the screw and the product is by rubber spacers (Please use screwdriver to assist the mounting of the standoff .) size: 19 x 25mm Material:Stainless steel colour:black Package Contents: 8 x Glass Standoff Only the above package content, other are not included. Note: Light and different displays may cause the color of the item in the a little different from the real thing. The measurement allowed error is +/- 1-3cm.