Able to Adjust Thickness Function 100 Sqcm Round Sample Cutter Round Cardboard Textile Carpet Sample Cutter carpet cutter Cutting area:100 sq cm Double-edged blades,both sides can be used,more durable the weight of the cutting sample times 100,you can easily calculate the weight per square meter accurate cutting area Standard accessory 1,rubber pad 2,5 blades(4 blades installed,1 alternated) Note: The knife blade sharp instrument, not the use of the hand on the bottom, so as to avoid damage. We also sell the rubber pads and blades for the round cardboard, please sent email to tell us .