Boxes made of 1300 micron gray-white acid-free cardboard with reinforced metal corners. Separate size.
 They allow you to ideally pack vinyl records in 33 rpm, 45 rpm or 78 rpm format, about 30 discs in paper bags.
 Box dimensions:
 15.5 x 33 x 33cm
 15.5 x 20 x 20cm
 15.5 x 27.5 x 27.5cm