The World's Fully Adjustable Locking Cable… The Python can secure anything in its grasp. Fully adjustable, it is always the right length for an infinite number of applications. This Easy-to-use 3-position lock allows you to adjust the cable length without back-slip. Its Velcro Tail Holder keeps unused cable from slapping your bike. You can even create your own bespoke Python with its interchangeable cable feature - simply choose the cable length that is perfect for your needs!