Dependable sealing system Rubber gasket and a doublesealing mechanism provide leakproof use and keep the cage dry, reducing maintenance tasks. Roller ball water regulation Roller ball dispensing delivers water evenly, mirrors hamsters' natural drinking behavior, and includes an antibackflow function to help reduce choking risks. Flexible and functional base Openbottom design allows flexible placement in any cage, supporting exploration and play while offering a cozy resting spot. Petfriendly bottle design Contoured fit with a uniquely curved drinking nozzle lets pets drink in a natural, comfortable position, promoting easy use and steady daily hydration. Use scenarios Standard cage setup: place the bottle at a convenient height near the nesting area to ensure easy access and reliable hydration during daily activity. Versatile cage configurations: the openbottom base fits in various cage layouts or wall placements, keeping water reachable in multilevel or irregular setups. Playtime and rest integration: the bottle's design supports curious exploration and provides a snug spot for rest, making hydration part of the hamster's routine during play and downtime.