Transformable Self-Defense Brass Knuckles Ring - Zinc Alloy or Stainless Stee

Transformable Design: Easily changes into self-defense brass knuckles

Material Options: Zinc alloy or 440C stainless steel, durable and rust-resistant

Comfortable Fit: Can be worn as a regular ring without discomfort

Robust Junctions: Very strong, won’t break easily

Lightweight: Weighs just 100g

Inner Diameter: 23mm (Size 12), fits most people