Enhanced play and shelter: Adapts to uneven cage surfaces, promoting hamster play and exploration while providing a comfortable, secure retreat during activity. Double-lock system: Special dual-locking mechanism with a sealing ring guarantees leak-free operation, keeps the housing dry, and supports long-term use. Ergonomic drinking spout: Precisely curved tip reduces neck strain and enables gentle water intake for both young and old hamsters. Stable cage mounting via a robust bracket. Durable water bottle: Made from wear-resistant, food-grade materials to maintain a hygienic drinking environment for hamsters and withstand regular use without material fatigue. Use scenarios: - In a standard hamster cage to encourage activity and exploration while offering a safe hideaway during play. - For hamsters of different ages, where the ergonomic spout ensures comfortable drinking for youngsters and seniors alike. - In busy households needing reliable, long-term hydration with easy maintenance and leak-free performance.