Shomer-Tec Ceramic Razor Blade Totally non-metallic, made from Zirconia ceramic, a super-hard material that is extremely wear-resistant Designed as a hide-out blade for cutting tape, ropes, plastic cuffs, etc. Blade has a lanyard hole so that it can be sewn into clothing or attached via a lanyard to your belt or gear Size: 1.25 x 0.4 (30mm x 10mm) Black Color