Bell Adjustable inner circumference: approximately 21-25cm Please adjust to fit your cat. Measure the size of your cat's neck at its thinnest point, fitting snugly against the neck, parting the fur. From there: Kittens and short-haired cats: add 1-2 finger widths (+2-4cm) Long-haired cats: add 2-3 finger widths (+5cm) ※ About bundle discounts 50 yen off for the second item and onwards. No discount for single items. ※ Each item is carefully handmade, but there may be slight variations in stitching and balance. ※ While designed to come off with force, we are not responsible for any accidents caused by the product. ※ Returns and refunds are not accepted except for defects on our part. ※ To keep prices low, we ship via regular mail. We cannot track the item, and we are not responsible for loss, damage, or breakage. Please understand this before making a purchase. ⭐︎ If you prefer insured, anonymous shipping: Add 50 yen for Yu-Packet Post Mini Add 100 yen for Rakuraku Mercari or Yu-Yu Mercari shipping ⭐︎ Anonymous shipping is free for purchases of 2 or more items ⭐︎ If you have any questions, please feel free to ask. #ram collar