Nylon coasters have many uses in fishing and shooting and other hobbys one of the main advantages is that the nylon coaster can be undone to wrap around any item and even two can be joined to hold large objects. Fixed spool reels can be held by using a figure of eight. Handy to keep in tackle box for emergency use. We supply the worlds military with these as a quick and easy telescopic gun sight adjuster easy to fit and much less expensive than purpose made ones.