THIS IS A 2 PACK OF E-Z Crocks. The EZ crock is a great clip on crock for your rabbits or small animals; a favorite for rabbit breeders of all sizes. Just lift off the clip, slip through the cage wire and slip back on. It locks the crock in place. No more spilling or tipping the water or feed out! It is made of a sturdy, safe plastic. Made from heavy plastic that is not as easy to chew through as traditional coop cups. Note: Colors may vary per batch. Shades displayed in the images are not guaranteed.