here is the product descriptions

Product Description
At the heart of the Lee Precision Anniversary Challenger II Kit is the Challenger Press, a strong O-frame press with a larger-than-average opening angled at 30° for maximum hand clearance. Compound leverage easily performs full-length sizing on even the largest magnum cases. There’s a built-in, easy-to-empty primer catcher. Complete powder-handling system, including the precise Perfect Powder Measure. Case preparation tools include a cutter and lock stud to trim cases, an inside/outside case mouth chamber tool, primer pocket cleaner, and a tube of premium sizing lube. You also get two Breech Lock Quick Change Bushings. These bushings make changing dies a snap and accomplish the task in seconds. Once mounted on your die, you'll never have to adjust the die again unless you want to. It saves time, eliminates guesswork and ensures the consistency of your reloaded product. You spend less time fiddling and more time cranking out rounds. To use the case cutter and lock stud a specific shell holder and case length gauge is needed for each caliber to be trimmed.
Small Base Sizer Dies are usually required for reloading ammunition to be used in automatic, semi-automatic, pump, slide and some lever-action rifles. These dies size the body of cases somewhat smaller in diameter and also set the shoulder back slightly more than a Full-Length Sizer Die to ensure proper functioning in the actions of these rifles. Not recommended for ammunition used in bolt-action rifles. Small Base Set contains Small Base Sizer with Expander-Decapping Unit and Regular Seater Die with Seater Plug. Small Base Sizer Dies also available individually. Available in many calibers.
Case preparation is five times easier and faster with the RCBS Trim Mate Case Prep Center. Five gear-driven rotating heads turn the tedious task of chamfering, deburring, primer pocket cleaning, military crimp removal and flash hole deburring into child’s play. Works great with the Trim Pro Power Case Trimmer so you can do case prep and trimming at the same time. Two stationary positions hold case neck brushes, and a cupped area holds dry case neck lube. The Prep Center includes large and small primer pocket brushes, inside chamfering and outside deburring tools, medium and small case neck brushes and a packet of dry case neck lube. Two year limited warranty. Accessories such as Primer Pocket uniformers are manufactured with high speed tool steel cutters and true the primer pocket wall and bottom. Military Crimp Removers are made with hardened steel cutters and ream out the crimp ring found in military cases.
The Frankford Arsenal Case Tumbler provides a quick, easy, and economical means to clean your brass. Used in conjunction with Frankford Arsenal Walnut and Corn Cob Medias, the Quick-N-EZ Case Tumbler removes fouling, lube, and oxidation quickly and conveniently. It will hold up to 600 9mm or 350 223 cases.
ok so I need to buy media and a .223 gauge ?