Harmony Colored Dry Erase Board is eco-friendly, 100 percent recyclable and made from recycled glass, sand and steel. Unframed board features 1" square corners, square standoffs and flat polished edges. The 1/4" thick, tempered glass provides a nonporous surface that will not ghost or stain and works with standard, dry-erase markers. Rear face is painted for a vivid contrast. Steel sheet backing provides a tackable surface with the use of rare earth magnets. Predrilled mounting holes are inset into the glass. The 1" square standoff hangers made of satin aluminum create a 1-1/4" spacing between the wall and glass. Board includes four rare earth magnets, four markers, an eraser and rear-mounted accessory holder made of clear acrylic.