Usage: Put the coin in the middle of the hole, fix the nails with flat corners in the bound paper clip, or stick the four corners with double-sided tape. This product contains 400 pieces of paper money clips, 50 pieces in a bag (one piece of 2 cells), and a circular hole with a diameter of 40mm. It is suitable for coins with larger diameters. The white card paper money and paper clips, the film material inside is OPP, has no side effects on coins, highly transparent attached film, excellent workmanship, is your best companion for collection. This product uses pure wood pulp paper, good hardness, smooth coating, high transparency, high ring alignment rate, neatly trimmed edges, no jagged edges. When collecting specifications, please pay attention to the appropriate model. Colour:White Material:Paper+OPP Size:100x50x0.58mm Package Contents: 400* Coin paper clip. Only the above package content, other products are not included. Note: Light reflection and different displays may cause the color of the item in the picture a little different from the real thing. The measurement allowed error is +/- 1-3cm.