Vinyl coating resists sweat and is easy to clean. Two-sided design keeps dumbbell from rolling. Color coded to help identify weight size. Dumbbells are a long-time standard tool for exercise and physical rehabilitation. Dumbbell hand weight: Comfortable, no-slip color-coded vinyl coating is easy on floors and helps to protect dumbbells from wear and tear over time. Step up your workout with a weights set: These durable hand weights are the perfect addition to aerobics and step workouts, as well as any standard strength training with weights for added intensity and resistance Lightweight options: Dumbbells are available in smaller sizes.