This could well be the ultimate last ditch hide-out blade.
The Ceramic Razor Blade is totally non-metallic, made from Zirconia ceramic, a super-hard material that is extremely wear-resistant.
This covert blade with a chisel-grind edge is designed as a hide-out blade for cutting tape, ropes, plastic cuffs, etc.
The 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). Thickness: 0.028″ (0.7mm). Weight: 0.017 oz.