HIGH-QUALITY CAST IRON KETTLEBELL: Constructed of solid cast iron with no welds, weak spots, or seams. Powder coating prevents corrosion and offers you a better grip with no slipping in your hand like a glossy finishCOLOR-CODED RINGS & DUAL MARKINGS FOR BOTH LB & KG: Color-coded rings make different weights easy to identify at a glance. Each kettlebell is labeled with both LB & KG. No need to use the calculator to figure out how much you are swinging!WIDE SMOOTH SLIGHTLY TEXTURED HANDLE & FLAT BASE: Smooth, slightly textured handle provides a secure grip for high reps, makes chalk unnecessary. Flat bottom enables upright storage, ideal for renegade rows, handstands, mounted pistol squats & moreMOST VERSATILE & FUNCTIONAL FITNESS EQUIPMENT: Used for swings, deadlifts, squats, lifting, get-ups & snatches to workout & increase strength of many muscle groups & body parts including biceps, shoulders, legs, & moreBUILD STRENGTH, POWER & ENDURANCE: Achieve your fitness goals faster with Yes4All Powder Coated Cast Iron Kettlebells. Kettlebells are effective total body cardio, fat burning, and muscle toning & active recoveryPTF Kettlebells are formed into a strong, balanced, single-piece casting with a flat wobble-free base. A clean, void-free surface and durable powder-coat finish give PTF Kettlebells an unmatched feel. The PTF Kettlebell was designed around these requirements. Premium Material: We started with the highest quality first run iron ore available, not scrap. Void free surface: We use a proprietary casting process so each bell can reach the highest quality and have the cleanest finish possible. This also allows us to have a smooth, comfortable handle. Single Piece Casting: ThePTF Kettlebell is cast in one solid piece, creating a stronger, more reliable handle and a void free surface. does not use plastic caps, plugs, or patches like lower quality products. Wide Flat Machined Base: We chose to machine the base of our kettlebell flat (not leave it as a raw casting) so it sits perfectly on the floor and does not wobble. Finish: The PTF Kettlebell has a matte black powder coat finish that has a great feel and will hold chalk. This feels more natural than a thick epoxy finish. Colors: We color coded the handles. By associating each kettlebell weight increment with a different color handle, it becomes much easier for gym owners and trainers to direct athletes to specific kettlebells on sight alone. Weight increments to choose from—ranging from 4kg to 48kg.