Cater to your fitness level with our adjustable weights, dumbbell: 5-44lbs, barbell: 5-88lbs, kettlebell: 2.5-26lbs. Ergonomic Comfort & Secure Grip: The dumbbells adjustable weight set is designed for a non-slip, secure grip and comfort that adapts to the natural contours of your hands and neck because of it's an ergonomic, foam-padded bar and upgraded anti-loosing nuts design.