Add more variety to your workout with the Body Solid ® Rubber Hex 55-75 lb Dumbbell Set. Each dumbbell is made of solid cast-iron and features a six-sided anti-roll design. Virgin rubber coating protects your equipment, walls and floors. A pin mechanism inside the dumbbell prevents loosening and spinning. Enjoy the durability of the Body Solid ® Rubber Hex 80-100 lb Dumbbell Set. FEATURES: Includes 10 dumbbells: (2) 80 lbs, (2) 85 lbs, (2) 90 lbs, (2) 95lbs, (2) 100 lbs Composed of solid cast-iron with a 6-sided anti-roll design Virgin rubber coating resists fading and cracking Coating and anti-roll design protects against floor and equipment damage Pin mechanism prevents spinning or loosening