Quartet Motion Workstation Dry Erase Calendar Board, 18 x 24 Inches (MMC25) Depend on the lightweight calendar board for superior mobility and planning on the run. Built-in swivel hangers attach on top of most office surfaces, including cubicle walls. Trust the standard dry-erase calendar surface to resist stains and ghosting. Transport the lightweight, 2 lbs. board with ease. Includes a Quartet dry-erase marker and eraser.