Strong 304 Steel Knuckle Duster Self-defense Gear

Material: 304 stainless steel
Size: 120mm*75mm*14mm
Finger hole: 28mm*23.8mm
Weight: about 425g

This is a very strong 304 steel knuckle, which can be decorated freely by DIY winding ropes or pendants, and can easily break the window and defend yourself.