MATERIAL: The needle is made of high quality iron and heat treated, the tip is sharp and wear-resistant. Durable and practical. CAREFULLY DESIGNED: This needle wheel has been carefully designed to ensure that it does not cut or pierce your leather and works when used. It can ensure the depth of the secondary employment trajectory and improve the efficiency of the secondary employment. ERGONOMIC DESIGN: The cylindrical handle of our serrated copy wheel can reduce the pressure on the finger joints when rolling and is not only easy to use but also comfortable to hold. COMFORTABLE TO USE: Make the drawing line on the material, then follow the pressed track wheel to sew or cut easily and comfortably by hand, then achieve fatigue-free work. APPLICATION: DIY leather crafts, leather art luggage accessories used to determine the hole position interval. 1. Please allow 1-3cm error due to manual measurement. Please make sure you do not mind before you bid. 2. Due to the difference between different monitors, the picture may not reflect the actual color of the item. Please take the real one as standard. Thank you! 3. If you have any questions, please contact us. 4. When marking the lines, you must press hard and slowly.