Complete Set for Multiple Birds: this package includes 24 pcs bird waterer cups designed for various caged birds including pigeons, quails, chickens and doves; Nice for both breeders and home bird keepers, these cups offer an economical hydration solution for your avian pets or livestock. Automatic Watering: the bird drinker cups easily connect to standard threaded water bottles; They provide continuous water supply without daily refills; NOTE: the Weight Of The Water Bottle Will Lift Up The Feeder Cup; You Can Try To Use a Rope Or Spring To Fix The Water Bottle To The Outside Of The Cage So That The Feeder Cup Can Be Placed Flat. Space Saving Design: each bird drinker feeder measures approximately 4 x 1.6 x 1.8 inches and weighs only 19 grams; The slim profile fits perfectly in small cage spaces without crowding; Their lightweight construction allows quick setup across multiple cages. Material: made from durable, odorless plastic material, these pigeon drinker cups resist cracking and withstand regular use; Suitable for both indoor and outdoor aviaries, they maintain performance through long term use while being safe for birds. Quick Installation: simply screw the waterer onto a compatible bottle and hang it on cage wires - no tools required; The simple design makes cleaning effortless, offering convenience for daily bird care management. Color:Blue Material:plastic Package Contents: 24 * Bird Drinker