Please read my profile before purchasing or asking questions. I will not respond to inquiries about things already stated. When using the bundle function, please apply without changing the price. I will message you after applying the combined shipping discount, and then please proceed with your purchase. The chain and PP tape for the core are made in Japan, and the plastic parts (buckles) are YKK. Made with 100% cotton sheeting fabric. This is a half-choke collar for medium to large dogs. The chain is plated, so it is safe to get wet. (Please do not leave it wet for several days.) Width: 2.5 cm Collar size: Approximately 29-44 cm (chain and metal hardware length not included) Chain size: Length 22 cm, Weight 60 g, Inner diameter of the ring 21 mm Please check for any damage before use. If there is any damage, do not use it and replace it with a new collar. This is a handmade item, so the stitching may not be perfect, and there may be slight misalignments. Please only purchase if you understand this. I cannot be held responsible for any accidents or troubles that occur during use. This will be shipped via standard mail, which has no tracking and will be delivered to your mailbox. For small items, I may not take them to the post office counter but will affix stamps and put them in the mailbox. If shipping from a mailbox, I will send a "shipping completed" email as soon as it is placed in the post office mailbox, regardless of whether it is a weekend, holiday, or collection day.