PowerBlock Pro 50 Adjustable Dumbbells
5 to 50 lb in 2.5 lb steps from a 13-inch block, with a 5-year residential warranty.
Specs
| Weight range | 5 to 50 lb |
|---|---|
| Increments | 2.5 and 5 lb |
| Selectable weights | 5, 7.5, 10, 12.5, 15, 17.5, 20, 22.5, 25, 27.5, 30, 32.5, 35, 37.5, 40, 42.5, 45, 47.5, 50 lb |
| Pairs of dumbbells replaced | 19 |
| Dimensions (L x W x H) | 13 x 7 x 7.25 in |
| Finish | Black urethane |
| Grip material | Contoured TPR |
| Grip diameter | 38 mm |
| Grip length | 4.88 in |
| Pin | Magnetic selector pin |
| Warranty | 5-year limited, residential use only |
These figures are copied from PowerBlock’s own published specs and were last checked on 2026-08-31. Manufacturers revise products without notice, and variants differ. Confirm anything your decision depends on with PowerBlock before you buy.
Choose this one if
- 50 lb per hand covers everything you do with dumbbells
- You want 2.5 lb steps the whole way up, not just at the bottom
- You want a 5-year warranty rather than a commercial 1-year
The detail
Nineteen weights from 5 to 50 lb in 2.5 lb steps is unusually fine. Most fixed dumbbell sets jump in fives, which means a press stalls whenever a 5 lb jump is too much — and on a 20 lb dumbbell, 5 lb is a 25% increase. Every step here is 2.5 lb, top to bottom.
Fifty pounds per hand is the honest ceiling and it covers more people than they expect. If your dumbbell work is presses, rows, curls and accessories rather than heavy unilateral pressing, this is the right size and the Pro 100 EXP is more block than you need.
At 13 by 7 by 7.25 inches it is far more compact than the 19-inch Pro 100 — small enough to sit on a shelf or under a bench rather than occupying floor.
The 5-year residential warranty is the longest PowerBlock offers on a dumbbell, against the 1-year commercial terms on the Commercial Pro range. That is a straightforward reflection of expected use, and for a home buyer it is the better deal.
Contoured TPR at 38 mm is the grip. TPR is comfortable barehanded and forgiving on high-rep work; the knurled stainless grips on the heavier PowerBlocks exist because 100 lb needs bite, and 50 does not. Thirty-eight millimetres is thick for a 50 lb dumbbell, which spreads load across the hand.
The shape is the usual PowerBlock trade: a nested cage around your hand rather than a bar with weights on the ends, so the bottom of a bench press and a deep lunge have less clearance than with a hex dumbbell. Most people adapt within a session.