Double seal design with a rubber gasket prevents leaks, keeps the hamster habitat dry, and simplifies cleaning for long-term use. Rollerball innovation: Uses a rollerball water regulation system that provides steady dosing, mimics the hamster’s natural drinking behavior, and includes an effective anti-backflow function to safely reduce choking risk. Versatile cage compatibility: Designed for uneven cages, this water bottle base encourages hamsters to explore while offering a secure place to rest and retreat. Ergonomic drinking design: A thoughtfully crafted, body-close shape and a curved drinking spout make this hamster water bottle easy to use, promote a relaxed drinking position, and support proper hydration habits for small animals like hamsters. Use scenarios - In uneven or multi-level cages, the double seal design minimizes leaks and keeps the bedding dry while ensuring reliable water access. - For hamsters that prefer a natural drinking pattern, the rollerball system delivers controlled water flow and reduces backflow risk, helping maintain healthy drinking behavior. - In cages with irregular surfaces or limited mounting space, the bottle base provides stable attachment and a comfortable drinking position, encouraging exploration and offering a safe retreat when needed.