Rack Tie:
The RopeTie makes it easy to use any rope as a tie down system. It saves time by not requiring to thread the rope through anchoring hooks and knots, and it makes it easy to tighten. Without knots it's also instantly released - you'll never waste time unjamming knots again. Tie down any load on the car roof-rack, on the boat deck, or anywhere else.

Watch how easy it is to tie down a kayak with a couple of Mini RopeTies and 20ft of rope. No metal parts to ding your car, no moving parts that get jammed, no knots - just a nice tight tiedown that releases instantly when you need to untie the cargo. Cost of 2 RopeTies + 20ft of .188" rope: $17.75.
(click in in the box below for a flash video).