Amazon カスタマー 5 These are perfect lightweight dumbbells to use at home. I include them in my workouts and they are excellent for conditioning I use them for my back, shoulders, chest and abs. They are also good for practising squat and deadlift form. The rubber handles are a good size for gripping and don’t slip out my hands even when I am extremely sweaty. The rubber coating and the hexagon shale makes doing push-ups on the floor good as they don’t slip on the floor.