Exclusively made for Level One USA, these lines are pre-stretched, pre-measured, pre-sleeved and pre-wound for your convenience; they are ready to go! 
Made with UHMWPE-fiber in a proprietary process, this is a high-performance, low stretch, slippery line that, in true Level One tradition, has an excellent price/quality ratio.
Bonus; they come in bright orange, for easy visibility both in the sky, as well as on the ground.