Dura-Rite Whiteboards provide a wear-resistant and dust-free surface at an affordable price. HPL gives smooth writability and erasability. Taber tests show dust-free Dura-Rite lasts up to 125 times as long as standard melamine. Surface is permanently adhered to an insulation board substrate. Anodized aluminum ABC Trim has a. 88" profile with hairline mitered corners. Top corners are protected with aluminum end caps. Full-length accessory tray includes plastic end caps to eliminate sharp corners. Twenty year limited warranty. Manufactured in the US of foreign and domestic materials.