10 Kraft Brown 4-30 Vinyl 12" Record Cardboard Multi-Depth Mailers #12BC04VD - Shipping Boxes / Containers (LP, 33RPM, Album)
These are brown cardboard record shipping boxes (fits 12" records). The boxes are made of 200# test cardboard and measure 12.5" x 12.5" x 4" (or 317.5mm x 317.5mm x 101.6mm). The box has scoring at 1", 2" and 3" for ease of folding down.  Each box can hold between 4 and 30 records!