Sorinex Center Mass Bell

The Sorinex Center Mass Bell (CMB) is a cylindrical loaded implement with its handle positioned in the exact center of the mass, balancing the weight across all three planes rather than off to one side like a kettlebell or dumbbell. Sorinex frames it as a modern take on old-school “stone” training tools – India’s Nal Stones and Chinese cauldron lifting – built to shorten the learning curve for rotational, single-arm, and gross loaded movement compared to a barbell or dumbbell. It’s cast from ductile iron rather than traditional cast iron, which Sorinex and reviewers alike credit with much better resistance to cracking when dropped, and finished in a glossy black powder coat with double handle openings on every size to widen the range of grips and exercises. Sizes run 5 lb to 100 lb (5-lb jumps to 50 lb, then 10-lb jumps), each sold individually with a limited lifetime warranty. It competes most directly with Rogue’s Thompson Fatbells – reviewers who own both note the CMB’s handle runs noticeably thinner at the lightest sizes and its shell is bulkier at a given weight, which makes it a bit harder to manipulate in fast movements than the Rogue equivalent.