About this product PRx Rubber Hex Dumbbells run from 3 lb to 100 lb (1.36 kg to 45.36 kg) and are rated for commercial use, so one rack can serve first-time lifters and heavy presses alike. The rubber-coated, six-sided heads prevent rolling between sets and are low impact on floors, protecting both the dumbbell and the surface underneath. Each dumbbell is built on a chrome-plated steel handle with a knurled finish and a slightly arched ergonomic profile for grip comfort and control. Every weight in the line carries a lifetime product warranty. What's included Pair of PRx Rubber Hex Dumbbells (selected weight) Features Weights available: 3 lb to 100 lb (1.36 kg to 45.36 kg) Chrome-plated steel handle with a knurled ergonomic finish Rubber-coated hex heads: low impact on floors, six-sided shape prevents rolling Slightly arched ergonomic handle shaped for comfort and control Rated for commercial use; recommended age 16+ Covered by a lifetime product warranty Best for Commercial gyms and studios: the line is rated for commercial use and backed by a lifetime warranty. Home lifters building one rack: 3 lb to 100 lb (1.36 kg to 45.36 kg) covers warm-ups through heavy presses. Lifters over finished floors: rubber-coated hex heads are low impact on floors and won't roll between sets.