Usage: Place the coin in the center of the hole and secure the paper clip using flat-headed nails or attach the four corners with double-sided tape. This product includes 100 paper money clips, with 50 pieces per bag (one unit containing 2 cells), and features a circular hole with a diameter of 40mm, suitable for coins with larger diameters. The coin clips are made of white card paper with OPP film interior, providing no harmful effects on coins, highly transparent protective film, and fine craftsmanship, making them ideal for coin collection. This product is made from pure wood pulp paper, offering good rigidity, smooth coating, high transparency, high ring alignment accuracy, cleanly cut edges, and no jagged edges. When selecting, please ensure compatibility with your coin specifications. Color: White Material: Paper + OPP Size: 100 x 50 x 0.58 mm Package Contents: 100 x Coin paper clips Only the items listed above are included; other items are not part of the package. Note: Lighting and display differences may cause slight variations in color between the image and the actual item. Measurement tolerance is +/- 1-3 cm.