A101 Bell 6mm Inner circumference: Approximately 15-28cm Please adjust to fit your cat. When worn, the appropriate size is roughly 1-2 fingers for kittens and 2 fingers for adult cats. For safety, please check and adjust regularly. * Discount for bulk purchases: 50 yen off for each additional item (1 set). * Each item is carefully handmade, so there may be slight variations in stitching and balance. * For your cat's safety, please use it within your family's supervision. If your cat dislikes it, please stop using it immediately. * We do not accept returns or refunds except for defects on our part. * To keep the price down, 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. * Shipped via Yu-packet Post Mini. Can be changed to Rakuraku Mercari delivery for an additional 100 yen. If you have any questions, please feel free to ask. #Ram Collar #Ram Collar Chouchou