ACRYLITE Marker Board is a high quality acrylic sheet with unsurpassed chemical and abrasion resistance. It cleans easily and maintains its durability for years of continued use. At 10 to 20 times more impact resistant than glass, it is a safer alternative for high-traffi c areas while off ering the same sophisticated appearance. Visibly more elegant than standard white board substrate materials, ACRYLITE® Marker Board can be framed or unframed as wall mounted or stand alone units. Easily fabricated into various shapes, it provides unlimited design options to satisfy every need. When used as offi ce window glazing, it becomes functional as well as decorative. Colors: Available in Both CLEAR (92% Light Transmission) and Translucent White (30.9% Light Transmission) Standard Sheet Size: 48 inch x 96 inch (1220mm x 2440mm) - custom-cut sizes available upon request ( must cut from the full sheet minimum order) Standard Thicknesses: .118 inch, .177 inch, .236 inch Tested with top brands of dry-erase markers Several brands of dry erase markers were tested on ACRYLITE® Marker Boards and left to dry for 15 weeks. All were easily removed with light pressure. The following brands performed well and completely wiped away with no ghosting or smearing: EXPO® Standard, EXPO® Low Odor, CenterStage, and Marks-A-Lot®.