This Safety Cutter Ring from Slice offers precision and control through a micro-ceramic blade that moves with your finger. Slip the comfortable silicone ring onto the tip of either index finger and pull your hand along the line you want to cut. This unique tool is ideal for paper, packing tape and clamshell packaging. The included silicone adapter ring ensures that the cutter will fit everyone; for larger fingers, simply remove the adapter. Its advanced ceramic blade lasts up to 11 times longer than steel.