Application: pet toy for bird, cat, hamster, etc Material: Plastic Diameter: 5cm/1.97'' Color: Random delivery (If you buy more than one,the color you received may be the same color or different colors) Package Included:10*Hollow Bell Ball Awesome toy for small to large birds Give your pet a treat and have hours of fun watching them play Birds like bright colors. It's colorful and beautiful, your bird will surely enjoy it Bird toy only, other accessories are not included Note: 1. Transition: 1cm=10mm=0.39inch 2. Please allow 1-3mm error due to manual measurement. pls make sure you do not mind before you bid. 2. Due to the difference between different monitors, the picture may not reflect the actual color of the item. Thank you!