The Hexagon shaped dumbbell set features a solid iron core, and is encased in hex shaped rubber for ultimate user safety and stability. They feature textured contoured chrome handles for ultimate user experience. They are crafted with gym garde materials, and are built for commercial use. The hexagon shaped rubber coating increases durability, protects the exercise floor, and reduces noise. The attractive dumbbell weights can be used in commercial or home settings, by both men and women. The free weights are great for workouts, strength training, and rehabilitation exercises.PROFESSIONAL GRADE - The dumbbells are crafted from high quality materials, and are built to withstand commercial environments.