Type:Soloards Timber Type:Birch Grang Board, green, movable, marine plywood Dimensions: 1.2 meters x 1 meter Minimum board thickness: 12.5mm The grntal and vertical etched and colored yellow visible at far se classroom. Grntal cing: 20mm Gral cing: 20mm With aluminum s. With legs and caster wheels for easy movement from one place to another.