Removable Slingshot Knuckle Duster Self Defense Window Breaker Boxing Guard

Four-finger fist buckle slingshot, made of zinc alloy, good workmanship, smooth surface plating, can be disassembled, with a wrench, you can install the two cards of the card ball leather band, finger tiger slingshot 2 in 1

Material: zinc alloy
Please note: no marbles