The metal ballpoint pen is the most popular tip technology and, in many ways, the simplest. A ballpoint pen uses a small ball made of carbide to disperse ink as you write. The ball is a buffer between the material you’re writing on and the ink inside the pen. The ball rotates freely and rolls out the ink as it is continuously fed from the ink reservoir. The metal ballpoint pens are not capped but instead, react and store via a rotating mechanism in the barrel. Low maintenance and easily refillable, the ballpoint pen is the option for the everyday pen user. Szu Mao is a mature ballpoint pen manufacturer with 44+ years of manufacturing experience, we are looking forward to cooperate with you, welcome to contact us!