The product description 1. This dog collar has a uniquely designed built-in silicone sleeve to ensure a secure fit and is compatible with Apple 2. [Comfortable Fit] Soft and lightweight polyester material makes your dog feel relaxed and comfortable when wearing it. 3. [Easy to Use] Apple Tracker TAB slips onto pet collars high quality company. Connecting the device is easy. Quick release buckle and D-ring hardware make it quick and easy to move. 4. This pet collar comes in bohemian, floral, tribal, and geometric designs. They will give your dog a stylish look on the go and on walks.