If you own a sailboat, typically with vertical stanchions and wire safety lifelines (a man-made bird perch) along the sides or around your boat, you will want to order the Patent Pending K-BOB LOOP (TM) “Stanchion” design. This contains 8 of the “SAIL” stanchion vertical clips along with 2 of the Rail clips (total of 10 clips in your package) to begin your protection from the bow rails found on many typical sailing vessels. 200ft of monofilament line on a spool is also included. All clips have three notches allowing you to adjust line heights. K-BOB LOOP(TM) SAIL clip also includes two groves around the base to attach 2 zip ties around your clip and stanchion. Zip ties help keep the clip securely to your stanchion rail in the event of a water hose, fuel hose or electrical line being accidentally pulled along your lifelines and the clip. Clips have a two-year warranty against breakage and will be replaced free of charge with proof of purchase along with the S&H fee. Get rid of the poop use the LOOP! It's affordable, almost invisible, it works, it's humane and it easily installs in minutes.