2 PACK, 2 SNAP, 4 BELLS - One of 2 sets, easy to clip in the pet collar different sizes of D ring, is a beautiful cat and dog accessories NICE SIZE FOR DOGS and CATS - 2" Height and each bell's diameter is 0.55", suitable for all sized collars and all sizes cats(dogs). KNOW YOUR PET'S WHEREABOUTS - A dog bell will help you keep up with your dog's whereabouts and let you know if he is moving in heavy cover, woods, or hilly terrain. NON RUST and LOUD VOICE - All made of stainless steel(bell and snap), the heavy duty snap ensures it will not fall off. EXCELLENT SERVICE - We are committed to high quality products. If you have any questions about the purchase or use process, you can consult us, we will give professional answers. Note: Due to the light and screen setting difference, the item's color may be slightly different from the pictures. Please allow slight dimension difference due to different manual measurement.