I purchased this jump rope from Amazon one month ago. I've used it about 5 times. The length is adjustable, and I haven't cut the rope. The jump rope itself is lightweight. There are no knot marks. Please feel free to comment if you have any questions. - Brand: CAT SOBAT - Type: Jump Rope - Adjustable Length: 210cm - 270cm - Features: 360-degree rotation - Grip: Non-slip grip Thank you for looking.