3DP Black Storage Box Holds 12x pamp new year Precious Metal Assay Cards Custom designed 3D printed box. Printed in PLA, 3D printed products are not perfect clones, you may notice layer lines or imperfections in the surface finish, or some stringing, these are quite normal but overall they make for very nice sleek coin protective cases. These are printed to demand, so please allow for some processing time before your order is ready to ship. PLA heat resistance is low and will begin to warp at 60C or 140F. Bars/coins not included.