Bell Collar Red → Inner circumference approximately 19-30cm Checkered → Inner circumference approximately 18-28cm Please adjust according to your cat. Measure the size of the narrowest part of your cat's neck, fitting it snugly around the neck as if 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) is a guide. ※ About bundle discounts 50 yen off from the second item 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 wish to have insured, anonymous shipping +50 yen to change to Yu-Packet Post Mini +100 yen to change to Rakuraku Mercari Bin or Yu-Yu Mercari Bin is possible. If you have any questions, please feel free to ask. #ramcollar