White Corrugated Cardboard Mailing Boxes, 20 x 4 x 4 Inches, Pack of 50, Crush-Proof, for Shipping, Mailing and Storing

Shipping Box, Box Style Long, Wall Type Single Wall, Inside Length 20 in, Inside Width 4 in, Inside Height 4 in, 20x4x4 in Inside LxWxH, 32 ECT, RSC, Outside Length 20 3/8 in, Outside Width 4 3/8 in, Outside Height 4 5/8 in, 20 3/8x4 3/8x4 5/8 in Outside LxWxH, Wall Thickness 1/8 in, Fluting Profile C Flute, Maximum Load Capacity 65 lb, Material Corrugate, Color Kraft, Post-Consumer Recyclability 100 Percent, Standards ASTM D5118, Inside Length Range 20 in to 22 in Length Shipping Boxes