Harmony frosted glass radius corner markerboards are eco-friendly 100% Recyclable and made from recycled glass and sand. Unframed boards feature 1 radius corners round standoffs and flat polished edges. Tempered glass thick provides a non-porous surface that will not ghost or stain and works with standard dry erase markers. With the rear face frosted for a transclucent appearance marker visibility is best when mounted on light to medium colored walls. Four or six pre-drilled mounting holes are inset into the glass and 1 diameter round satin aluminum standoff hangers create a 1 spacing between the wall and glass. The board features a clear acrylic rear-mounted accessory holder complete with markers and eraser. Made in the usa. Features: tempered 1 4 thick recycled colored glass with pre-drilled mounting holes non-porous surface will not stain and works with standard dry erase markers. 1 Diameter satin aluminum standoff hangers create 1-1 4 spacing between the wall and glass marker board made from glass features a unique clear acrylic rear-mounted accessory holder that comes complete with 4 markers and 1 eraser for best marker visibility mount on light to medium colored walls. Specifications: assembly required : no product dimensions : 48 h x 96 w x 1.63 D product color : frosted black