The nautilus instinct dual adjustable pulley is a top product to be using for any user whether you are just beginning to get into fitness or you re at a more advanced level this quality strength machine boasts its many great features and helps users massively in getting ever closer to their fitness aims this adjustable pulley has two separate weight stacks of 100kg each that can be adjusted to the own accord of the user providing them with a quick easy yet complete workout the instinct ra