The Cat Face Evil Look Mini Knuckle is one of a kind knuckle. It features a solid, thick construction of a 440 stainless steel. The Cat Eyes transforms into a finger hole while the ears acts as the defense point. The eyes diameter measures about 0.75 inch which fits perfectly in size 10 fingers. The mouth of this unique Cat Face Mini Knuckle sports four tooth and it includes a lanyard hole on the forehead which can be hung around your neck. This Evil looking knuckle also comes with an ABS sheath which fits perfectly on your belt and makes this knuckle easily accessible. This is a great self-defense tool.