The Lamoutor 4Pcs Bird Water Feeder Plastic Drinker Feeder Water Clip for Parrots Budgie Cockatiel Lovebirds is a great way to provide your birds with fresh water. This water clip is made of high quality plastic that is safe for your birds. The water clip features four pieces that are easy to install. Simply fill the water bottle upside down, cover the lid, and then turn it over quickly so that it can be hung inside or outside the cage. When your birds drink water, the water will shake, and the water will flow automatically to ensure the continuous supply of water.