1Made of chrome vanadium steel, high strength and hardness, durable to use. 2Including 7 different specification screwdriver heads, meet your different needs. 3Anti-slip handle with ergonomic design that make it easier to operate, comfortable to hold. 4Multi-point adjustable joint bar, easy to install, can adjust the length according to different needs 5All parts are neatly packed in a plastic storage case, convenient to carry and use.