Pack of 2 easy to use and place a good gift for your pet the buttons at the top are flat and wide, perfectly paw-sized Use training bells to get your family dog trained so going outdoors is easyFeatures: Sound: Pleasant sound, quite loud and very durable. Portable: For small and light, this bell is convenient and easy to carry during travel, walking, road and all other outdoor activities. Waterproof: It can be left outside. Specification: color: white and black Material: Plastic Package size: 3.153.153.15 inch Package weight: 175g Package includes: 2 bells