Suitable For Paper, Photo, Card And Fabric Cutting. Fixed Grip, Keep Steady Without Shaking, Ensures Accuracy. Built-In Blade Cover And Plastic Pivot Spike Guard For Safety When Not In Use. ADJUSTABLE CIRCLE DIAMETER - The cutter has an adjustable slide mechanism that easily changes the circle diameter you wish to cut. TOOL FREE BLADE REPLACEMENT - The circle cutter provides safe and easy tool-free blade replacement. When the cutting edge becomes dull, the screw-fixed blade can be removed and replaced by untightening the large knurled knob. Colour:Red/Blue/Yellow/Green Material:Plastic+Metal Package Contents: 4 * round paper cutter 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.