Mount Board Double thick Black/Black 30.5x40.6cm with 19.4x29.5cm Window (10 pieces) [MD20139] craft-products Adhesive on the flap allows

Adhesive on the flap allows you to customize the fit

Acid Free and Archival

Neutral pH

Cut-out Size: 19

Mount Board Double thick Black/Black 30.5x40.6cm with 19.4x29.5cm Window (10 pieces) [MD20139] craft-products Adhesive on the flap allowsSize: 30,5 x 40,6 cm Cut out Size: 19,4 x 29,5 cm Color: Black One pack contains: 10 pieces PH neutral Standard Decorative Double Mats by Crescent are quality buffered pH Neutral matting at an economical price. Double mats have a 0,5 cm reveal. Store flat in dry climates to avoid warping. Mat board does not come With backing boards. To match these double mats, be sure to get backing board that corresponds to the outer dimensions.