Home › 12in Record Shipping Mailers - Cardboard Multi-Depth 12in Record Shipping Mailers - Cardboard Multi-Depth Strong brown 12" LP record mailers for shipping your records. It is adjustable to 3 different widths (2, 4 or 6cm) depending on how many vinyl records you want to send. Default - $2.00 $2.00 Share 0 Tweet 0 Pin it 0