Features: 1. It can be marked on metal, plastic, glass, wood, paper, etc 2. The refill can be replaced to meet the needs of woodworking marking 3. Lengthened design, can be used to mark through holes or other narrow areas 4. The pen clip design is convenient to use and not easy to lose, which improves efficiency 5. Each construction pencils are carefully designed by engineers. They are ergonomically designed to make you very comfortable to hold, and to write more smoothly, making your work more efficient. 6. Since carpenter pencils have 6mm and 43mm long fine dots, this allows them to be drawn in holes that other oily pencils cannot enter, so this will be a wonderful gift for carpenters. The woodworkers will be very happy to receive them. Specification: Material: Metal and Rubber Color: Black,Red Size:As the picture shows Package Include: 1 Set=1Pc Pencil & 6Pcs pencil Refill Notice: The size is measured manually, please allow a slight dimensional error.