The hardest part about this BuoyRope is describing what the main use really is. I originally ordered it because it looked like a good quick and versatile docking line that would allow me to easily tie up my fenders and keep the boat tied to the dock with the one easy-to-use design. But since trying it out, I discovered many other great uses including a makeshift clothes line or a tie down for inside the boat. It's also a great way to secure your inflated tubes when you're caught between that time of day when the kids are done tubing, but they may want to go later so don't deflate the tube just yet.
Now I know this is designed just for boating, but when I went to the website I realized this company also makes the LoopRope. The original version is handy for tying down cargo in your truck and out of curiosity I tried it out and the boating version worked for tying my load down on the way to the lake too.
BuoyRope comes in pacific blue, black, yellow or red with white banding and is equipped with one stainless steel double gated LoopClip. There are different lengths available, plus combo packs, but I went with the 5-foot version that retails for $22.95. Because it is fully adjustable, this is the one I would recommend to give you the most options.