Light Aluminium Folding Brass Knuckles Self Defense

Can be transformed into a Everyday Carry Weapon very easily, unique creative design! It can pass airport security check easily. Riveted connection—never loose or break. Full Aluminium Made, Anodized Coloring, no rusting, and very durable. Only 31g, ultra light. Inner diameter is 23mm, approx Size 13. Special attention before purchase.