Yes4All Adjustable Kettlebell Weight/Solid Cast Iron Kettlebell Weight/Cast Iron Rubber Base Weight, Strength Training… $7.99 – $36.00 Make sure this fits by entering your model number. 30 LBS HIGH-QUALITY SOLID CAST IRON KETTLEBELL: Built to last – constructed of solid cast iron with no welds, weak spots, or seams. Great for training indoor & outdoor BLACK PAINT FINISH: Painted to prevent corrosion and increase durability & give you better grip strength with no slipping in your hand like a glossy finish