The blades are made out of a special mixed polycarbonate clear plastic. They have tremendous strength and are resilient to contact. Despite the blade durability, we do not recommend these for heavy dueling. The way that the blades connect to the adaptor and then insert into the handle is not suitably safe for a dueling environment. Important Note: The flat blades are compatible with: Knuckles, xpBoost, Power Up, Origin and BonusXP emitters.
