Exquisite and high-quality workmanship makes it good in elasticity and toughness. Heat treatment makes it have stronger clamping compatiblece. The lacquered and electroplated surface prevents it from rusting easily. And the equipped transparent barrel makes it very convenient to carry and store. Made of metal material, it is very durable to use. There are six specifications compatible you to choose from: 15mm, 19mm, 25mm, 32mm, 41mm, 51mm. It is suitable compatible business, office, school, study and so on. Item Name: Bill Clip Material: Metal Color: Black Number of Paper to be Clamped: 15mm (Can Clip 55 Sheets of Paper) 19mm (Can Clip 75 Sheets of Paper) 25mm (Can Clip 110 Sheets of Paper) 32mm (Can Clip 145 Sheets of Paper) 41mm (Can Clip 190 Sheets of Paper) 51mm (Can Clip 240 Sheets of Paper) Purpose: Business/Office/Learning Features: High Strength, Convenient to Use, Good Elasticity Size Details: Extra Large: Width: 5.1cm/2.01" (Approx.) Large: Width: 4.1cm/1.61" (Approx.) Medium Large: Width: 3.2cm/1.26" (Approx.) Medium: Width: 2.5cm/0.98" (Approx.) Medium Small: Width: 1.9cm/0.75" (Approx.) Small: Width: 1.5cm/0.59" (Approx.) Notes: Due to the light and screen setting difference, the item's color may be slightly different from the pictures. Please allow slight dimension difference due to different manual measurement. Package Includes: 12 x Extra Large 51mm Bill Clips or 24 x Large 41mm Bill Clips or 24 x Medium Large 32mm Bill Clips or 48 x Medium 25mm Bill Clips or 40 x Medium Small 19mm Bill Clips or 60 x Small 15mm Bill Clips