CAP Barbell
CAP Barbell Adjustable Dumbbell Set 40 lb
Quick verdict
Best for: It makes sense for shoppers who prefer threaded steel handles, can pause to load plates evenly, and want components that store in a small area. The medium knurl and conventional round plates feel more familiar than selector-style block dumbbells.
- Buy if a simple, inexpensive 20-pound-per-hand set covers the program and slower plate changes are acceptable.
- Skip if supersets need rapid changes, loose-plate storage is a problem, or the training plan already calls for more than 20 pounds per hand.
Where to buy
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4-20 lb per dumbbell
Weight Range
Threaded star-lock collars with loose 1 in plates
Adjustment
Editorial assessment
Who this product is for
The CAP RSW2-40T is a basic cast-iron spin-lock pair that prioritizes low mechanical complexity and standard one-inch plates over fast changes; its 40-pound total is most useful for beginner or accessory work, not heavy progression.
Reviewed 2026-08-29 by HomeGymPicker Editorial Team
Main advantages
The set contains two 14-inch handles, four three-pound plates, four five-pound plates, and four star-lock collars. There is no selector mechanism to service, and the one-inch plate format offers more sourcing flexibility than a proprietary molded weight stack.
Main limitations
Weight changes are slower and require handling loose plates plus re-tightening four collars. With 40 pounds divided across two handles, the practical ceiling is 20 pounds per dumbbell as supplied. Round plates can roll, and exposed cast iron needs dry storage.
Space, fit, and setup
Plan a tray or rack for eight loose plates and four collars, not just space for the assembled handles. Each handle is 14 inches long, so check clearance beside the body during curls and presses and keep the floor free of unloaded plates.
Fit, setup, and ownership cautions
Load both ends symmetrically, thread each collar completely against the outer plate, and recheck tightness during a session. The exact Amazon variant maps to model RSW2-40T; do not substitute the similarly named RSWB-CS040T parts list. Current warranty terms were not verified, so confirm them with the seller.
Consider instead
PowerBlock Sport 24 changes much faster and offers a slightly higher per-hand ceiling, at the cost of proprietary parts and block geometry. Core Home Fitness reaches 50 pounds per hand with twist selection, but adds a more complex mechanism and substantially higher total load.
Research basis
Model and ASIN identity, the exact three- and five-pound plate package, handle length, one-inch standard, and star-lock mechanism were cross-checked against a retailer record for RSW2-40T because CAP no longer exposes an exact official page. Uncertain warranty claims are omitted.
Sources: Walmart RSW2-40T exact-model specifications (reviewed 2026-08-29)
Compare before you decide
Product Identity
Weight & Adjustment
Construction & Dimensions
Included Equipment & Ownership
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