Please read the profile before asking questions or making a purchase. We will refrain from responding to inquiries about information already stated. The pattern is printed on polyester grosgrain ribbon, so it's waterproof. (Please avoid leaving it wet for extended periods.) Width: 2.5 cm Collar size: Approximately 30-44 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 regular mail (without tracking), and will be delivered to your mailbox. If shipping from a post box, we will send a "shipping confirmation email" once the item is placed in the post box, regardless of whether it's a weekend or holiday when collections are made.