USA letter knuckle duster outdoor self-defense

Name: USA letter ring

Material: zinc alloy

Surface: electroplating/spraying

Weight: about 113 grams

Size: palm length 77.5mm finger length 108mm height: 65mm thickness: 8mm finger hole size: 27*25mm (finger hole is designed as an oval)

(See detailed picture, the size is measured manually, if there is any deviation, please refer to the actual situation)

Color: black, silver, brass, bronze

Function: The product is portable and suitable for martial arts self-defense and life-saving. It can be mastered without special training. The small size is suitable for carrying with you, outdoor camping or self-defense equipment in the car. Keep it at home or in the car for self-defense and self-rescue in critical situations. It is a very good product