Set includes two Brooder Bottle CapsTM. Our Brooder Bottle CapTM will fit a standard recycled soda bottle . The Brooder Bottle Cap will help you provide clean fresh water to your baby chicks as well as start them on a dripper waterer earlier in life. Our caps also make a great addition to your isolation cage should you have a injured or sick bird. Best of all your new chicks will have access to fresh clean water all while prevent them from accidental drowning. Please note: colors may differ Instructions: Using a clean soda bottle (12oz, 16oz, 20oz or 2L) fill with clean water, using a clear bottle will help you keep an eye on your water level. Securly fasten our Brooder Bottle CapTM to the top of the bottle. Invert the unit and poke a small hole in the bottom of the bottle. Please Note: It is very important to poke a small hole in the bottom of the bottle to allow air to balance within the bottle. Failure to do so may result in improper water flow or no flow from the bottle. Hang your brooder bottle from the side of your brooder or cage at a comfortable level for your bird(s). You can use any type of wire to securly affix the bottle to the side of the cage i.e wire hanger, picture hanger wire, fence wire, electrical wire etc. Make sure that your bottle is far enough away from your heat source so the water does not get hot. If you have chicks of different sizes set the dripper for the highest bird and provide a setp up for the smaller ones ensuring it does not hinder access to the larger birds, better yet get extra Brooder Bottle CapsTM! *Price is for one set of 2 Brooder Bottle CapsTM