Bell Adjustable from approximately 15 to 25 cm inner circumference. Please adjust to fit your cat. Measure the narrowest part of your cat's neck, fitting the measuring tape snugly against the neck, parting the fur if necessary. Then, add: Kittens and short-haired cats: 1-2 finger widths (+2-4cm) Long-haired cats: 2-3 finger widths (+5cm) ※ About bundle discounts 50 yen off for each item after the first. No discounts 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 package, and we are not responsible for loss, damage, or soiling. Please understand this before making a purchase. ⭐︎ If you prefer insured, anonymous shipping: +50 yen for Yu-Packet Post Mini +100 yen for Rakuraku Mercari or Yu-Yu Mercari shipping Please feel free to ask if you have any questions. #ram collar