Retractable Precision Cutter.This Slice tool includes the great features of the upgraded Precision Cutter replaceable blade, easy, no-tool blade change and puts them in a retractable format that’s as easy to use as a pen. Keep the 10417 handy with its built-in clip. When you’re ready to cut, its micro-ceramic safety blade will give you control over detailed cuts in thin materials. Much safer than a traditional craft knife, this retractable cutter features Slice’s proprietary finger-friendly edge, which cuts effectively but is much safer to the touch than traditional blades. In addition, this blade will never rust and lasts up to 11x longer than metal blades.