describe: Name: leather punch set Specification of supporting spacing wheel: 3mm, 3.5mm, 4mm, 5mm. Spacing wheel diameter: 16mm Usage: Use the spacing wheel to determine the spacing. 1. The starting point should match the blade position of the spacing wheel. 2. Hold the spacing wheel vertically and use it by pushing. 3. If the spacing wheel is pushed forward, the axle at the tip will rotate, so that the interval with equal width can be determined. 4. If spacing wheels are used, you can set equal intervals like this. 5. In this way, the interval has been set on the suture, and if you stab it with a diamond cone from the interval, you can punch one suture hole after another. Material: steel+wood colour: Silver + Brown Package Contents: 1 x Leather Puncher Set (1 x Leather Puncher, 1 x Screwdriver, 4 x Spacing Wheel) 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.