Leak-proof bottle with a rubber gasket ensures a tight seal, prevents leaks, keeps the cage dry, and is easy to clean and maintain for durable performance. Natural drinking experience with a roll-ball dispenser that delivers a smooth water flow, mimics natural drinking movements, and includes a reliable anti-backflow feature to minimize choking risk during use. Supports natural hamster behavior by attaching seamlessly to uneven cage structures, promotes exploration, and serves as a safe hiding spot for playful and curious hamsters. Comfortable drinking solution with a body-conforming design and an ergonomically curved drinking outlet that provides a comfortable drinking position and supports healthy hydration without discomfort. Use scenarios - In cages with uneven bars or multi-level layouts, ensuring hydration access as the hamster moves around. - For play and exploration periods, benefiting from the natural drinking motion and the safe hiding space. - During cage cleaning or refresh, thanks to the easy-to-clean design that speeds up maintenance.