Thank you for viewing. I purchased this about 10 years ago. The length of the straps can be adjusted in three stages with a zipper. It's light and doesn't take up much space, making it convenient to carry. I have lost the instruction manual. My child used it until they were about 2 years old, and it has been stored at home. There are no tears or stains, and I think it is still perfectly usable. It is a used item, but if you don't mind, please consider it.