1、The upper cover of the box body is set at an inclined angle of 35 to 60 to effectively prevent drinking tank from pollution. 2、The rotatable pipe set on the top cover solves the problem that pigeons can't stand and defecate. 3、The support rod is a 360° rotating circular tube, it will not stuck pigeon hair. 4、The drinking water device can control the water level of the drinking tank to prevent the pigeons from heatstroke due to lack of drinking water. 5、The drinking water tank is connected with the drinking water port by a split hasp, which can facilitate the cleaning of the drinking water tank. Features: The upper cover of the box body is set at an inclined angle of 35 to 60 to effectively prevent drinking tank from pollution. The rotatable pipe set on the top cover solves the problem that pigeons can't stand and defecate. The support rod is a 360° rotating circular tube, it will not stuck pigeon hair. The drinking water device can control the water level of the drinking tank to prevent the pigeons from heatstroke due to lack of drinking water. The drinking water tank is connected with the drinking water port by a split hasp, which can facilitate the cleaning of the drinking water tank. Made of premium ABS plastic, non-toxic, sturdy and durable. Great tool to solve the problem that the water dispenser consumes a lot of water, the sink is not easy to clean, and the pigeons cannot stand and defecate. Specification: Condition: 100% Brand new Material: ABS Capacity Size Weight 2L 25*20*20cm/ 9.84* 7.87* 7.87in 201g 4L 31.5*25*25cm/ 12.4* 9.84* 9.84in 243g 6.5L 34*27*27cm/ 13.39* 10.63* 10.63in 394g Package List: 1* Pigeon Feeder