High-tech ceramic blade; Features a state-of-the-art ceramic blade that is almost as hard as diamonds, lasts up to 11 times longer than steel and never rust BUILT-IN SAFETY - A built-in safety cap locks onto the removable ceramic blade when not in use to prevent nasty accidents. With a twist, the safety cap slides the handle of the craft knife and you're ready to go Suitable for fingers; The ceramic safety blade design of the craft knife is safe to touch while cutting materials effectively, significantly reducing accidents Precision knife; this excellent letter opener is ideal for cutting beautiful intricate shapes. It also makes precise cuts on felt, cardboard, wood panels, cardstock, art tissue paper and vinyl mats - anything a regular craft knife can handle Designed for craftsmen; textured non-slip grip provides superior control, while the lightly weighted tool is balanced for stability