White Literature Mailing Boxes, 12 x 11-3/4 x 3-1/4 Inches, Pack of 50, Crush-Proof, for Shipping, Mailing and Storing,M3RBXL

Literature Mailer, Literature Mailer Type Standard, Wall Type Single Wall, Inside Length 12 in, Inside Width 11 3/4 in, Inside Height 3 1/4 in, Inside LxWxH 12x11-3/4x3-1/4 in, Board Test 32 ECT, Outside Length 12 3/4 in, Outside Width 12 1/4 in, Outside Height 3 1/2 in, Outside LxWxH 12-3/4x12-1/4x3-1/2 in, Wall Thickness 5/32 in, Fluting Profile B Flute, Maximum Load Capacity 65 lb, Material Corrugate, Color White, Post-Consumer Recyclability 100 Percent, Standards ASTM-D-5118