In the mid-Fifties, Bob Carver created a sensation with a rope effect he created based on ideas from Hen Fetsch. In fact, before he could be awarded the IBM Originality Trophy in 1957, he had to expose his creation's pure sleight-of-hand method to the judges. Later dubbed "Professor's Nightmare" by Gene Gordon, the effect of three completely examinable ropes of differing lengths magically becoming the same size has become a classic of magic.
You get three the three pieces of cotton rope cut and sealed in just the right size - ready to use and amaze.