Product Name: Multi-Functional Fitness Dumbbell Water Bottle Capacity Options: 2.5L: Suitable for prolonged training sessions, outdoor hiking, team sports, and other activities requiring ample hydration 1.5L: Ideal for daily fitness routines, running, cycling, and other moderate-intensity exercises 0.5L: Lightweight and portable, perfect for short-term workouts, office hydration, and on-the-go use Material: Food-grade TRITAN material, heat-resistant (-20C to 89C), BPA-free, non-toxic and odorless, durable and impact-resistant, compliant with food safety standards, ensuring safe direct contact with beverages. II. Core Features, Redefining the Sports Water Bottle Dumbbell design, two-in-one functionality: The bottle features a dumbbell-inspired design with curved handles on both sides that conform to the natural curve of the palm, ensuring a comfortable grip. When filled with water, it can serve as a temporary dumbbell, meeting the needs of low-intensity strength trainingsuch as bicep curls or lateral raisesallowing you to exercise anytime, anywhere, transforming your hydration tool into a fitness accessory. Large Capacity Design, No More Frequent Refills: Food-Grade Material, Safe and Durable: High transparency allows for direct observation of water levels; excellent impact resistance prevents breakage from accidental drops; heat-resistant and corrosion-resistant, suitable for hot water, sports drinks, juices, etc., without releasing harmful substances, and resistant to bacterial growth even with repeated use.