HAJEX Rubber Hex Dumbbells feature a great design and achievable option that delivers quality . performance . and durability. Each dumbbell is manufactured with heavy-duty cast iron and the highest quality rubber. Our sturdy . rubber-enclosed HEX heads diminish noise and limit wear and tear. You can include the Rubber Hex Dumbbells in any fitness or strength training routine. You can build muscle . stabilize muscles . or expand your fitness gear. You can use it anywhere i.e. in your home . outdoors . in a studio . or in a hotel. It’s perfect for Commercial purposes as well as Residential use.Practice a bunch of dumbbell exercises from training your biceps/triceps to your glute . these dumbbell sets are ideal to get the job done. Manufactured with cast iron . the dumbbells ensure lifelong durability and a protective covering prevents them from rusting. Alongside the versatility in weight choices for many athletes . a good set of dumbbells can be used to replicate almost any type of barbell exercise . while also offering a wider range of single-arm . rehab-specific . and pinpoint movements in virtually any sized space.Rubber Hex Dumbbells up to 150LB feature the following:28-35mm diameter handle10lb and above have a larger 30mm+ diameter handle for a better grip of the dumbbellFeatures & Specifications:Weight range: 2.5lb to 120lbHandle Diameter (Grip): 28MM up to 10lb . 30-35mm for 10lb and aboveTolerance Level: +/- 3%Heavy-duty Rubber Encased Heads: Minimum noise or floor damage upon a throw-off . and least wear and tear on the dumbbells for a long period.Solid-grip . ergonomically designed Chrome-Plated Handle1-year warranty on quality