Details: * Brand new and high quality *Made of high quality material more durable. *Can be used to extend an existing watering system or can be connected to a bucket or bucket to create a gravity water feeder *When the bird is drinking the spring piece protrudes and releases more water into the cup. *Automatically fills when birds feed on a built-in plunger *Color: As Pictures Show Warm Tips: *BYF drinking cups can be easily converted to side or bottom mounting. *Compatible with standard 20mm PVC water pipes. Package Contents: 4 *water feeders Note:The real color of the item may be slightly different from the pictures shown on website caused by many factors such as brightness of your monitor and light brightness.