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Bells of Steel
Bells of Steel

Bells of Steel Adjustable Kettlebell (10-40 lb)

4.1 / 5 editorial rating

An adjustable cast-iron bell that swaps internal plates to cover 10 to 40 lb, replacing a rack of bells in a compact footprint.

$130 MSRP · ref. May 14, 2026
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MSRP is a reference figure — live price is on the retailer's site.

Overview

The Bells of Steel adjustable kettlebell collapses an entire light-to-mid weight ladder into a single unit, letting a lifter dial the load between 10 and 40 pounds by adding or removing internal cast-iron plates housed in the bell's base. For a home gym short on space or budget, that is a compelling proposition: one bell handles warm-up swings, goblet squats, and lighter presses without a shelf full of individual kettlebells. The outer shell is cast iron with a powder-coated handle that keeps the familiar feel of a traditional bell, and the adjustment system locks the plates in place so the load does not rattle during ballistic work once it is properly secured. The handle is sized for two-handed swings, and the bell sits flat for floor work. The compromises are inherent to the format: the overall body stays the same size regardless of the weight selected, so a 10-pound setting feels oddly large and a 40-pound setting concentrates less mass than a dedicated cast bell, and the balance shifts slightly as plates are added. Changing weights is slower than grabbing a different fixed bell, so it suits planned sessions better than rapid drop-set transitions. For a beginner or a traveler who wants range without clutter, it is a practical all-in-one, with the usual adjustable trade-offs in feel and changeover speed.

Pros

  • +Replaces a full light-to-mid bell ladder in one unit
  • +Compact footprint saves home-gym space
  • +Powder-coated handle keeps a traditional feel
  • +Plates lock down for ballistic work when secured

Cons

  • Body size stays fixed regardless of weight selected
  • Balance shifts slightly as plates are added
  • Slower to change than grabbing a fixed bell

Full specifications

Kettlebells specs

Type Adjustable
Weight 40 lb
Adjustable Yes
Adjustable range 10-40 lb
Coating Powder
Handle width 5.4"
Fill material Cast Iron
Flat bottom Yes
Competition spec No

Dimensions & weight

Dimensions (L×W×H) 8" × 8" × 11"
Floor footprint 0.4 sq ft
Product weight 40 lb

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