Lee's Bird Cage Cups are made with the safety of your pet birds in mind. These cups are constructed with highly durable shatter resistant plastic. The built in plastic hanger allows you to easily hang these cups inside wire cages quickly and securely. This two pack of Bird Cage Cups are dishwasher safe for easy cleaning making these cups great for water, food and treats. Note: Assorted colors - color will be chosen randomly at time of purchase.