1.Double sides 2.waterproof 3.movable 4.several sizes ... PVC sheet 4. waterproof,movable,high qualit 2*A1 Double sided A-BoardOur Metal Poster Board is made of anodized ... Character: Double side,32MM Alu mitred/rondo snap frames,waterproof,movable,high quality,silver/black color,Several sizes available2.Materail:Aluminium ... management:We can also make customerized sizes for you. double sides A board