The pen has 6 functional parts, such as ruler, slot and cross screwdriver, touchscreen stylus, ballpoint pen and key ring, so it can be a writing tool, measuring tool, repair tools, and easy to carry. The pen body is made of aluminium in fine workmanship, the pen tube is made of copper, the refill and screwdriver are made of iron and the matching gap of the pen head is small, So the whole screwdriver pen is lightweight, stable, durable and not easy to break. And the key ring design is easy for you to hold it or just hang it on your bag, which can bring the convenience to your daily life.