Rival Strength Hex Dumbbells are the perfect addition to any home or commercial gym. The hexagonal shape not only prevents the weights from rolling away between sets but offers assistance when performing body-weight exercises, like push-ups.  The handle features an ergonomic curve with a knurled surface for added comfort and grip when lifting.  Our Hex Dumbbells are manufactured from a solid cast iron core with premium rubber casing enclosing the entire head of the dumbbell. This single solid core provides superior weight tolerancing and a more balanced dumbbell. The heads themselves are friction welded onto the handle of the dumbbell, preventing the heads from loosening or coming off with rigorous use. Cheaper alternatives will be made from offcuts welded together to bring the core up to weight, with the heads spin-locked onto the handle without a hardwearing fixing like welding.  Product Details: Produced from quality, odourless rubber that will not fade or crack Chrome, ergonomic, knurled handle Sold in pairs Specification: Weight Tolerance - +/- 2%