Shop IRON COMPANY for space saving compact dumbbells for home and studio from brands like PowerBlock, Core Home Fitness and CAP Barbell. Choose from different PowerBlock sets up to 90 lbs. per dumbbell with quick weight changes via a magnetic selector pin. The 5-50 lb. Adjustable TwistLock dumbbells feature a contoured handle and weight changes as easy as twisting the handle. Dumbbell stands, weight benches and wall posters are available accessories.