Specification Material: Steel Size: R45mm Features: 1, the ideal cutting paper, fabric, leather, plastic, cloth, etc. 2, for cutting at home, office, school, shop, especially the use of technology. 3, use more secure. Use Tips 1. Sharp knife, use caution, not to be out of reach of small children; 2. If the long-term not in use , please drop some of the oil in the cutter head , extended service life. 3. Round knife blade for consumables, due to personal use habits and different life varies cut mat. Package includes 10pcs x rotary cutter blade Shipping 1.If you need to buy in bulk, please contact, we will reply in 24 hours. 2.We are always working hard to ensure your package arrives as soon as possible. Please understand that some factors like weather, high postal traffic, and the performance of shipping companies are outside of our control. 3.Usually product Reaches after about 12-45 business days depending on destination. If you have not received your shipment within 45 days from payment, please contact us. We will track the shipment and get back to you as soon as possible with a reply. Refund or resend product will be offered if item still not received. 4.We maintain high standards of excellence and strive for 100% customer satisfaction! Feedback is very important. We ask you contact us immediately BEFORE you give us neutral or negative feedback, so that we can satisfactorily address your concerns. It is impossible to address issues if we do not know about them! THANK YOU :)