I picked up the Ptwola 10 Pcs Pet Bells for Dog Cat Collar Round Collar Charms Crisp Sound with Clasps Charm Pet Pendant Accessories Christmas Decoration for Small Animals (Colourful) from Ptwola because I needed a practical solution to keep track of my two cats around the house. At $4.99, the price seemed right for a pack of ten bell charms. The product arrived quick