PowerBlock 504-00187-00 Dumbbells
- Dumbbell
- 1
- Alloy Steel
- Black
A PowerBlock adjustable dumbbell in steel and black, worth it for the space savings if the actual weight range fits your training, which is worth confirming beyond what is listed here.
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How it ranks among the 88 dumbbells we track
4.4★ across 100 Amazon ratings, Bayesian-smoothed toward the category average.
100 Amazon ratings, weighted on a log scale so huge counts don't drown everything.
100+ bought on Amazon last month.
Brand identity, imagery, description and spec coverage.
The ProductDome score is separate from the Amazon rating shown above: it combines the Bayesian-smoothed Amazon rating with evidence volume, tracked demand, and data quality across the 88 dumbbells we track - how the scorecard works · full dumbbells data report. Confidence: medium - useful but incomplete evidence.Last refreshed Aug 4, 2026. Data-computed, not a hands-on test. Compiled by the ProductDome Research Team.
Overview
PowerBlock's 504-00187-00 is part of the brand's selectorized dumbbell system, built from alloy steel in a black finish. PowerBlock is best known for stackable, adjustable dumbbells that swap several fixed weight pairs for one compact block.
The listed item weight of 100 pounds most likely reflects the packaged or total system weight rather than a single dumbbell's working weight, since PowerBlock dumbbells are sold as adjustable units covering a range rather than one fixed number. The pieces count of 1 in the data is similarly a packaging figure, not a statement that only one dumbbell ships. Confirm the actual weight range on the current listing before buying, since that detail is not in the supplied specs.
- PowerBlock adjustable dumbbell system
- Alloy steel, black finish
- Model 504-00187-00
- 100 units bought in the past month
Who it's for
Suits home lifters who want one adjustable unit to cover a range of dumbbell weights instead of a full rack of fixed pairs, trading some floor space for versatility. Less suited to those who specifically want traditional fixed weight dumbbells with no adjustment mechanism.
Strengths and trade-offs
Drawn from this product's published specifications.
- Space saving adjustable design typical of the PowerBlock line
- Recent purchase activity suggests active demand
- Exact weight range not specified in the available spec data
- 100 pound item weight likely reflects packaging, not per hand weight, so confirm before buying
Performance notes
Alloy steel construction is the build material given, with 100 units bought in the past month indicating steady recent purchase activity for this listing among the demand data available.
Specifications
| Brand | PowerBlock |
|---|---|
| Model | 504-00187-00 |
| Pieces | 1 |
| Material | Alloy Steel |
| Color | Black |
| Item Weight | 100 pounds |
Other PowerBlock dumbbells
How it compares
This product against the closest alternatives we track in dumbbells.
| Product | Amazon rating | Ratings | ProductDome score |
|---|---|---|---|
| PowerBlock 504-00187-00 DumbbellsThis product | 4.4 / 5 | 100 | 3.9 / 5 |
| Amazon DB1001 DumbbellsAmazon | 4.8 / 5 | 127,742 | 4.7 / 5 |
| CAP SDRIS-025 DumbbellsCAP | 4.7 / 5 | 11,917 | 4.6 / 5 |
| Yes4All DSAX DumbbellsYES4ALL | 4.7 / 5 | 18,568 | 4.6 / 5 |
| Portzon Neoprene dumbbellsPortzon | 4.8 / 5 | 27,600 | 4.6 / 5 |
Similar dumbbells from other brands
Questions about the PowerBlock 504-00187-00
Common buyer questions answered straight from the product spec data - no fluff, no "it depends".
Is this a single dumbbell or a pair?
The listing data does not clearly specify; PowerBlock systems are typically sold in pairs, so check the current listing to confirm.
What is it made of?
Alloy steel, in a black finish.