Rubber-Coated Hex Head Dumbbells by Fringe Sport are available in sets and pairs including dumbbell sets with racks. We focus on durability and quality with our dumbbells for sale- no more worrying about a head falling off your dumbbells in the middle of a bench press! We also offer adjustable dumbbells with knurled steel alloy handles for the ultimate in bro pump! The rubber coated hex heads are resistant against cracking and fading while protecting floors and equipment. We make these dumbbells from solid cast iron with a 6-sided anti-roll design and encase their heads in virgin rubber. Rubber coated hex head dumbbells by Fringe Sport feature extra thick rubber coating for the ultimate in long-lasting durability. Their heads are securely fastened with a uniquely designed pin mechanism that means this equipment is about as low-maintenance as it gets. No spinning or loosening.