Features: ● This is a water bottle specifically for hamsters. ● It attaches with suction cups and can be used in both tanks and cages. ● It has a steel guard to prevent the suction cups from detaching. ● It has a ball-point valve to prevent water leakage. Size (approx.): Width 6.5 x Depth 4.2 x Height 12 cm Set Contents/Capacity: ● Main unit x 1 ● Holder (for cages) x 1 ● Suction cups (for tanks) x 2