The Lee Universal Decapping and Depriming Die is made of steel and allows the reloader to take cases directly from the range and decap them without the need of lube or cleaning. The Decapper even removes crimped in primers and accepts cases up to .550 in diameter. Shellholders sold separately. Comes in a plastic case. While this is listed as a Universal die, it is not recommended for use with 17 or 20 caliber cases.