Paradise Sure Lock Cup, 20 oz Can be installed on vertical or horizontal wire and will adopt to cages with wire spacing of 3/8 to 1-3/4-inch Helps prevent spillage locks securely to a mounting bracket which will remain secure Easy to install twist and unlock cup to remove and refill May also be used as a bird bath for Finches Canaries Parakeets and other small birds Made from pet safe material and dishwasher safe