Our E-Z Crocks are available in three different sizes (5 oz., 10 oz., & 20 oz.).  E-Z Crocks feature an easy on/off method.  All you have to do is slide our wedge easily on/or.  These great crocks are great for feeding or watering birds, cats, rabbits or other small animals.  As with all of our E-Z Crock Products, these great crocks are made of ABS material.  They are durable and dishwasher safe.  Be sure to check out our complete line of E-Z Crock Products (mats, feeders, guards, etc.)