Doublesealing design for leak operation: rubber gasket and a doubleseal system prevent water leaks, keeping the habitat dry, simplifying cleaning, and supporting longterm use. Antibackflow protection: rollerball dispensing mirrors the hamster's natural drinking motion, providing smooth and even water flow while preventing backflow and choking risks for safe hydration. Openbottom flexible design: adapts to irregular cage setups with ease, encouraging active play and exploration, and also serving as a comforting shelter for your pet's wellbeing. Comfortable hydration solution: bodyconforming shape with an ergonomic curved drinking outlet delivers a comfortable drinking position, supporting healthy hydration without causing discomfort. Practical use scenarios: In standard hamster cages with varied wall shapes or mounting points, the leakproof design stays secure while easy access is maintained. In multilevel or irregular cage layouts, the flexible design accommodates different attachment points and spacing for convenient placement. In temporary setups or travel carriers, the reliable seal and smooth dispensing provide safe, accessible hydration on the go. Key attributes at a glance: Function: leakproof hydration system with antibackflow protection Compatibility: designed for standard hamster cages and irregular setups Material: includes rubber gasket components for sealing Performance: consistent water delivery via rollerball mechanism, comfortable drinking outlet for pets Note: Due to the light and screen setting difference, the item's color may be slightly different from the pictures. Please allow slight dimension difference due to different manual measurement.