Metal Knuckle Duster Multifunctional Tool for Martial Arts Self-Defense

Material: zinc alloy
Weight: about 152g
Please note: the surface of metal products is difficult to avoid, and grinding fine marks, sand spots, edge concave marks, and die joint eye marks are everyday phenomena.

Please note: This product’s knife has no lock button and can only be cut separately after opening. If it is used for boxing, please close the knife first to avoid cutting yourself.