Fenrry 45mm Rotary Cutter Set with Replacement Blades Quilting Sewing Clips Sewing Marker Pen for Sewing Fabric Leather Cutt Feature: _x000D_ _x000D_ _x000D_ 1.Safety lock can lock the rotary cutter blades in the handle when not in use, so as to prevent personal injury caused by accidentally opening the blade. Even children can safely use this rotary knife under the supervision of their parents._x000D_ 2.The sewing cutters are easy to replace the blade. The replacement blade goes on the side which the screw has the words on it, then, you should tighten the screw but not too tight to keep the blade move smoothly._x000D_ 3.Perfect for Cutting Fabrics, Quilts, Threads, Paper, Cardboard and More. It's an Ideal choice for Quilting, Sewing, Scrapbooking, Card Making._x000D_ _x000D_ _x000D_ _x000D_ Specification: _x000D_ _x000D_ _x000D_ Type:Rotary Cutter_x000D_ Diameter: 45mm_x000D_ Color: 5 colors_x000D_ Material: Plastic + Steel Blade_x000D_ Product 1:Sewing clips_x000D_ Product 2: Sewing Marker Pen_x000D_ Product 3: 45mm Rotary Cutter_x000D_ Product 4: 5 Replacement Blades _x000D_