Made of steel material, strong and sharp edge, durable in use Easy to use, just place the punch in position and strike firmly with a hammer 10 different hole sizes: 0.5mm, 1mm, 1.5mm, 2mm, 2.5mm, 3mm, 3.5mm, 4mm, 4.5mm, 5mm Makes clean holes in gaskets, leather, plastic, rubber, vinyl and other soft materials Used for leather crafts, garments, handbags, canvas, belts, jacket, etc Features: This hollow punch tool set is made of durable solid steel, with long handles that provide extra grip and comfort. Hollow punches make clean holes in gaskets, leather, plastic, rubber, vinyl, and other soft materials, are used for leather crafts, clothing, handbags, jacket, straps. Specifications: Material: Steel Hole: 0.5mm, 1mm, 1.5mm, 2mm, 2.5mm, 3mm, 3.5mm, 4mm, 4.5mm, 5mm Length: 10cm/3.93inch Quantity: 1 set (10pcs) Weight: approx. 180 g Package: 1 Set (10pcs) x Leather Punch Tool Note: 1. Please allow 1-3mm error due to manual measurement. Thank you for your understanding. 2. Monitors are not calibrated same, item color displayed in photos may be showing slightly different from the real object. Please take the real one as the standard.