Smart Poly material has been designed for charts in the classroom and home These charts are strong durable water resistant and do not need lamination They can be displayed like any chart with hooks Ashley Smart Tak pins tacks staples etc The surface is designed for dry erase and water based markers and washable crayons Chart measures 13 x 19 with a dry erase glossy surface 0 45mm and grommet Features . Confetti Incentive Smart Poly Chart Dry Erase Surface. Pack of 10 Specifications . Design Confetti. Material Polypropylene. Weight 2 lbs