This is the classic rope magic effect where three unequal lengths of rope are magically transformed into three ropes of the same length right before the spectator's eyes! Very easy to do and makes you look like you really know what you are doing.
The routine is essentially the same as My Favorite Rope Trick, but different handling of the ropes is used. Some think it is easier, but I personally don't see much difference. .
This is such a fine rope trick (don't let the price fool you) that you should also seriously consider purchasing the Teach-in DVD which can be found by clicking on the link below.