These are super smooth bamboo laminated wood panels made for print mounting. We are proud to offer you the finest quality mount boards in the world; made in the USA from eco-friendly renewable resources. The thick panels are available in sizes from 2" x 3" to 30" x 45"; and the 1" thick blocks are available up to 12" x18". The wall mount keyhole cutout is on all pieces except 1 - thick blocks 5x7 and smaller. Sizes shown in stock.