The hammer head shall be spherical and made of metal, and the shaft shall be of wood, rattan, bamboo, or plastic (PVC pipe is sometimes used for increased durability). Rattan or bamboo is recommended over wood or plastic. The total weight of each hammer will be 12 lbs., 16 lbs., and 22 lbs. The women shall throw the 12 lb. and 16 lb. hammers and the men shall throw the 16 lb. and 22 lb. hammers. The length of the hammer will be no longer than 50" in overall length.
The hammer will be thrown with the feet in a fixed position. There is no approach allowed in the hammer throw. The competitor may move his feet after the hammer is released. No back line is drawn for the Hammer Throw and sidelined are normally not drawn either. All fouls besides the backline foul still apply.