This is an example of an iconic manufacturer in South Korea that no one in the US has ever heard of. Americans will snap up cheap China-made products either sold directly from the manufacturer or that an American brand paid to slap their name onto.
The original made in Korea is, of course, far superior in quality.
KSY is South Korea's #1 jump rope manufacturer, and this product shows why. It's called the Grand Prix Ultra Speed Series and is far, far better than anything you'll get from China. It uses wire rope, which means no tangling and the ability to support both beginners and advanced jumpers. Unlike old-school jump ropes where you adjust the length by awkwardly tying knots, this has a screw-lock design that allows for precise length adjustments. The rope never stretches, never deforms, and the handle is super comfortable to grip.
