Corundum Knuckle Dusters

Name: Corundum Knuckle Dusters
Type: Knuckle Duster
Quantity: 1
Description: Knuckle Dusters are pieces of metal shaped to fit around the knuckles. Designed to preserve and concentrate a punch's force by directing it toward a harder and smaller contact area, they result in increased tissue disruption. This includes an increased likelihood of fracturing the victim's bones on impact. The extended and rounded palm grip also spreads across the attacker's palm to absorb the counter-force that would otherwise be absorbed primarily by the attacker's fingers, reducing the likelihood of damage to the attacker's fingers. This model is made of Corundum. While wielding this weapon, the user cannot wield any weapon with a handle in the same hand.
Abilities: N/A
Durability: Durability is that of corundum. This means that if this item were to be hit by any material more durable that corundum, it would destroy this weapon. Otherwise, it withstands materials underneath corundum on the hardness scale. This weapon can dent any material that is as durable or less durable than corundum. Corundum is among the more durable materials, making this weapon very versatile.
History: Metal ring and knuckle style weapons related closely to the modern knuckle duster date back to ancient times and have been used all over the world for many hundreds of years. Cast iron, brass, lead, and wood knuckles were made in many shinobi nations during wartime. Soldiers would often buy cast iron or brass knuckles. If they could not buy them, they would carve their own from wood, or cast them at camps by melting shuriken and using a makeshift mold in the dirt.
Appearance:

Spoiler:

Done. This one will be for me alone.