Micrometer ball pen with twist mechanism. With built-in ruler of 10cm. Blue ink. Features: Ball pen with twist mechanism, Calipers, Built-in ruler of 10cm, Blue ink. Materials: Plastic. Colours: White. Size: 14.8 x 1.1 cm. Packing: Poly Bagged. Decoration Position: Barrel of pen. Print Size: 5 x 0.7 cm.