Literature Mailer Literature Mailer Type Standard Wall Type Single Wall Inside Length 9 in Inside Width 4 in Inside Height 3 in Inside LxWxH 9x4x3 in Board Test 32 ECT Outside Length 9 3/4 in Outside Width 4 1/2 in Outside Height 3 1/4 in Outside LxWxH 9-3/4x4-1/2x3-1/4 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