Please read the profile before asking questions or making a purchase. We will refrain from responding to inquiries about items already described. The grosgrain ribbon is made of polyester and printed with a pattern, so it's waterproof. (Please avoid leaving it wet for extended periods.) Width: 2.5 cm Collar size: Approximately 24-34 cm Before use, always check for any damage. If there is any damage, please refrain from using 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 imperfections. We appreciate your understanding and ask that you only purchase if you agree. Please note that we are not responsible for any accidents or troubles that may occur during use. Shipping will be via non-standard mail, so there is no guarantee, and it will be delivered to your mailbox. If shipping from a post box, we will send a "shipping confirmation email" when the item is placed in the post box, regardless of whether there is a collection on weekends or holidays.