This is a lot of 10 packs of 40 (not 20) Black Scott Mounts 40 X 25 size and more as follows: 4 each 40 x 25, 2 each 25 x 22, 1 each 22 x 25, 1 each 51 x 36, 1 each 33 x 27, 1 each 41 x 31. This lot contains more of the most used sizes.