Those of you who have bought a ton of dumbbells in the past know too well how expensive heavy sets can be. The Rock Weights 80 lb Dumbbell Mold gives you a more affordable way to exercise with heavy weights. Simply fill it with concrete, and you are set. These weights have a crack resistant design.
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Rock Weights: A quick glance at CONCRETE dumbbell and kettlebell MOLDS!
These Rock Weights have a thick handle and sidebars for extra durability. A 40lbs version is also available.
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