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urethane dumbbells stand out as the superior choice for durability
Unlock the secret to a longer
Hardware: Includes laser-cut numbering on the uprights for easy height tracking and comes standard with our signature sandwich J-cups to protect your barbell knurling
This innovation eliminates the limitations on positions and storage capabilities often associated with traditional spotter arms
At the core of the PCD are six self-aligning pillow block bearings
ROLLER J-CUP DUFFALO/CB-4 BLOCKS option-set-286034-select-3 urethane dumbbells stand out asIRWIN FITNESS ROLLER J CUP 2. 0 CB 4 DUFFALO BLOCKS Irwin Fitness's Barbell Blocks, a smart and versatile solution for specialty barbell usage. Machined from solid 2. 5" acetal rod, these blocks are crafted to provide a dual purpose advantage, setting them apart from other options on the market. Unlike many alternatives on the market, our blocks were designed to accept both 38mm and 32mm barbells.
