Material and construction: EVA foam provides buoyancy and durability in water. The weights have low water absorption and quick drying for reliable performance. Function and performance: Designed to deliver buoyant resistance that supports upper body and core work. Helps build endurance, burn calories, and improve flexibility. Can be used as a resistance tool for aerobics. Portability and handling: Lightweight and easy to carry, enabling you to take them to the pool, gym, or travel locations. Simple to use for strengthening the upper body and lower back. Versatility and compatibility: Suitable for a range of water activities including pool sports, water aerobics, water dance, aquatic lessons, and underwater fitness. Adaptable to different workouts and fitness goals. Use scenario 1: Athome or hotel pool workout — use during laps and stationary drills to add resistance for arms and shoulders, then switch to leg kicks for a fullbody challenge. Use scenario 2: Water aerobics class — incorporate into circuits to increase resistance during arm lifts, presses, and waterbased cardio moves. Use scenario 3: Aquatic lessons or underwater fitness — apply resistance during technique drills to build strength and mobility without impact.