【One-man Brake】 Served as a practical tool for you to check air leaking by yourself. Specifically, it would help for pressing the brake even when there is no another person in presence doing you a favor. 【Double Functions】 Not only works for holding down the brake pedal（hook to steering wheel）, but is strong enough to hold the clutch pedal in while adjusting the clutch (hook to the seat), indicated by some customers. 【Practical Design】 1)Adjustable Length：as a telescoping tool, this truck pedal depressor will extend to the pedal and lock in position. Extend long enough meet your needs for most cases. .