Fringe Sport Rubber Hex Dumbbells
Chrome-and-virgin-rubber hex dumbbells from 3 to 100 lb, sold by the pair with a 2-year warranty.
Specs
| Contents | 2 dumbbells (1 pair) |
|---|---|
| Weights | 3, 5, 8, 10, 12, 15, 20, 25, 30, 35, 40, 45, 50, 55, 60, 65, 70, 75, 80, 85, 90, 95 or 100 lb per dumbbell |
| Handle diameter | 1 to 1.5 in depending on weight |
| Material | Steel, chrome and virgin rubber |
| Weight tolerance | ±3% |
| Warranty | 2 years |
These figures are copied from Fringe Sport’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 Fringe Sport before you buy.
Choose this one if
- You want fixed dumbbells and the wall space to keep them on
- You want fine steps at the light end — 3, 5, 8, 10, 12, 15
- You want virgin rubber heads rather than recycled
The detail
Twenty-three weights from 3 to 100 lb is a genuinely fine ladder, and the resolution is where it matters: 3, 5, 8, 10, 12, 15 covers the range where a 5 lb jump is a 30% increase. Most dumbbell ranges start at 5 and go up in fives, which leaves beginners and anyone doing rehab or rear-delt work with nowhere to progress to.
Sold by the pair rather than as a set, so you buy the weights you actually use. That is the practical answer to the main objection to fixed dumbbells, which is that a full set costs a fortune and takes a wall — you can buy six pairs, not twenty-three.
The comparison is against adjustables like the PowerBlock Pro 100 EXP and the Ironmaster Quick-Lock. Fixed dumbbells are instant and shaped like dumbbells; adjustables take one shelf and cost you seconds per set. If you superset or drop-set, fixed wins by a distance.
Virgin rubber heads rather than recycled is the material worth having — recycled crumb sheds, smells, and loses shape. Chrome handles with steel underneath is standard construction.
The handle diameter varies from 1 to 1.5 inches depending on weight, which is the right approach: thin handles suit light dumbbells where a fat grip feels clumsy, thicker handles spread load once the weight is enough to strain your fingers.
±3% tolerance is loose — three pounds on a 100 lb dumbbell — and normal for moulded rubber heads. If you want matched pairs to the ounce, this is not the category.
Two years is a modest warranty. The rubber head is what fails on a hex dumbbell, usually where it meets the handle, and virgin rubber lasts better than most.