Slice?s curved 10520 blade is a safer option for craft and precision cutting. Most blades start out dangerously sharp and dull very quickly, becoming a hazard once again. Advanced ceramics retain their edge much longer than metal.This property allowed Slice to develop a unique finger-friendly edge that cuts effectively, lasts up to 11 times longer than steel, and is safe to the touch.Not all ceramics are created equal and Slice designs everything with safety as priority one. This curved craft blade is the perfect addition to any crafter, DIYer, or professional artist?s kit. Keep cutting your materials and reduce all the accidents usually associated with craft knives so you can enjoy your projects.As with all Slice blades, the 10520 is non-conductive, non-magnetic, non-sparking, chemically inert, and never rusts. The blade is safe up to 1600 degrees Celsius and does not require special sharps disposal, oil lubricants, or maintenance.The 10520 craft blade handles most craft materials easily, including felt, paper, boxboard, foam core board, flexible plastics, cardstock, vinyl, hard plastic clamshell packaging, leather, quilting applique paper, washi tape, and contact paper. Its curved shape is ideal for weeding vinyl.Not for use on metal, wood, or other extremely hard surfaces. The 10520 rounded-tip, curved-edge blade is compatible with several Slice tools, including the 10548 Craft Knife, the 10589 Craft Knife (Safety Cap), the 10580 Precision Knife, and the 10568 Replaceable Blade Scalpel. Professional artists, crafters, makers and teachers will all appreciate the safety and versatility offered by Slice handles and blades. Slice blades are developed for the industrial market and have become a favorite of safety managers because they are effective and safe, reducing injuries in manufacturing settings. The same durable design is now available to the home user. Slice donates one percent of global profits to autism research.