Good: Ader Kettlebells: Cast in one piece, with a wide, flat base and a hard hammertone epoxy finish for a smooth, clean look. Available from 9LB up to 203LB.
Better: Rogue Kettlebells: Rogue Kettlebells are manufactured from top quality iron ore, cast in a single, solid piece, and finished with a black powder coat for a great, natural-feeling grip. The base is machined flat, and each bell includes a color coding for quick identification from a distance. Weight range: 9LB to 203LB.
Best: VF Precision Kettlebells: Made from a special alloy steel, VF Precision Kettlebells are machined with specially contoured flats for greater comfort and stability in the rack and overhead positions. Each weight increment features the same dimensions--allowing for consistent training. Available in 10KG to 48KG.