This pulley holder is a game-changer when it comes to engine work. As my tests showed, it securely holds pulleys in place, making the task of loosening or TIGHTENING bolts a breeze. The interchangeable design ensures compatibility with a wide range of pulleys. The sturdy construction and ergonomic handle provide a comfortable grip for extended use... However, the only drawback is the lack of a storage case, which would have been convenient for organization and portability..