Card Sleeves, Magnetic Card Holder, Toploaders manufacturer / supplier in China, offering 12.5" X 12.5" X 1" White Vinyl Record Lp Shipping Mailer Boxes Easy Fold Lp Cardboard Mailing Box, Lp Vinyl Record Mailer Shipping Boxes, 12" 33 Rpm White Kraft Paper Lp Vinyl Record Inner Sleeves with Polypropylene Lining and so on.