MEC is known for making high-quality shotshell presses that work great for all levels of shotshell reloaders from beginners just learning this skill to advanced loaders who have been reloading for decades. The Super-Sizer contains MEC's exclusive Power-Ring collet sizing device. Eight steel fingers resize the base back to original dimension. Great for updating conventional reloaders. Accepts all shotshell lengths. Material is made of steel fram and hardware. Features "Power Ring" Collet Resizer (eight steel finger encircle the base and apply even pressure until the base is reshaped back to its original size.