Overview 1. Don't want to buy a bunch of weights? This ingenious dumbbell-shaped water bottle can provide assistance. 2. Fill the bottle with water to complete your tailored workout. The weight can range up to 1 kg! 3. Post-exercise, lay it flat and it won't roll away so easily. Specification Material: PP (polypropylene) Size: 26 (cm) Where to Use: fitness equipment, body building Weight: random color (kg) Package Content Water dumbbell*1pcs (random color)