<p><b>45mm Ergonomic Rotary Cutter Using Questions:</b><br> 1.If the blade doesn’t automatically retract and is stuck inward or outward when you let go of the handle. How to solve?<br> -Please loosen the screw in the middle of the blade (the screw is on the other side of the trademark). Or press the black button (protector) on the cutter.<br><br> 2.About the appearance and use of the blade.<br> -The blade will look a bit old and dirty, and some blades may have scratches. This is normal, scratches are caused by collisions and friction with other blades during the production process, which does not affect the sharpness and use of the blades. And the blades are <b>not really dirty or old, just because to reduce rubbing, we added engine oil for lubrication and protection.</b><br><br> 3.What items can be used for cutting?<br> -It can be used to cut multiple layers of fabric, felt, vinyl, batting, cardboard, paper, leather, etc. But please note that the harder the material, the more effort is required.</P> <p><b>45mm Rotary Cutter Specification:</b><br> -Condition: 100% Brand New<br> -Main Material: ABS(Acrylonitrile Butadiene Styrene plastic) & SKS 7<br> -Main Color: Blue & White<br> -Dimendions: 16x5.6 cm(6.30"x2.20")<br> -Blade size: 45 mm(1.77")<br> -Package size: 13x22x5 cm(5.12”x8.67”x2.0”)<br> -Package include: 1 pc Rotary Cutter & 7 pcs Blades</P> <p><b>NOTE:</b><br> 1.The knife edge is sharp. Please use it carefully. Do not put it in a place where children can reach it.<br> 2.When cutting, please use a special cutting board or flat wooden board at the bottom of the cutting material. Do not cut directly on glass or marble.</P> <p><b>About Yan Cheng Service:</b><br> -Thank you for Purchasing from Yan Cheng.<br> -If you have any question, please feel free to contact us at any time.</P>