Rocketlok RKB-36 Adjustable Kettlebell Set
It is baffling how Rocketlok isn’t a household name when it comes to not just adjustable kettlebells, but kettlebells in general. Rocketloks unique Russian Doll design keeps this kettlebell the same size and shape and only changes the weight of the bell. This design also keeps the weights exactly where they should be with little to no shifting during movements. The weights are pretty much entirely made of steel with the outer shell being powder coated with a smooth finish to prevent from snagging and premature wear and a tough polyurethane cap to keep the weight cylinders in place. If there was a complaint about these kettlebells, it would be they only adjust from 14 to 20 pounds in three pound increments or 24 to 36 pounds in four pound increments. Rocketlok offers a solid 10 year warranty which should be fine for most users.