The tool pen is designed to be portable and multifunctional. Powered by 3 cell batteries, the LED flashlight built on one end of the screwdriver hole will offer bright light to shine in the darkness or where requested enough light to be seen clear. Creatively designed with a bubble level gauge, it can well detect the level of the surface. This tool pen also include a 4 different sizes screwdriver set. The screwdriver set is to esure you have much more choice in change to deal with different situations. This small but with multiple functions tool pen provide so much convenient in daily use. Color：Black/Silver Size：5.5"*0.98"*0.78"