Features: Just remove the protective backing paper and apply. For permanent bonding, lightly sand the surface and apply pressure. Creates strong, lasting adhesion that keeps your projects looking well. The industrial-strength adhesive forms instant bonding with most clean, dry surfaces. Before final pressing, then becomes permanent when pressure is applied. Specifications: Material: extruded polystyrene Color: white Size: about 24 x 36 x 3/16 inches/ 60.96 x 91.44 x 0.5cm Package includes: 25 x Self adhesive foam board Notes: Manual measurement, please allow slight errors on size. The color may exist a slight difference due to different screen displays. Our products have strong adhesive, please do not stick them on the paper cabinet, paint cabinet, in case of damage to the furniture