At last a reasonably priced closed cell fender that can be fastened together to form a continuous line of boat protection for rafting up, or stopping abrasion, etc. Because these fenders are not thick, they can be slipped into tight gaps between a jetty and a boat hull or 2 hulls. They come with a length of dock line on one end and a Velcro strap on the other to enable you to daisy chain them together. - Dark grey outer layer with light grey inner- 3 sizes available