Refill Color:black / red / yellow Specification: Each set includes 2 automatic pencil and 2 box of corresponding model lead cores, which can be replaced by themselves after use Professional pencil design: The pencil adopts a low center of gravity metal design, providing ideal weight balance, which is conducive to concentrated writing, less prone to fatigue, and brings you an unparalleled writing experience Easy to use: The pencil features an automatic metal design and a spiral anti slip design at the grip. Simply press the cap lightly to push out the lead, and the pen end has a clip design for easy portability Service Quality: We are committed to providing high-quality services to customers worldwide. If you are not satisfied with the product, please contact us and send us an email through Amazon. We will reply to you within 24 hours! JOMPENS 3.0mm Solid Mechanical Carpenter Pencils Set with Refills Woodworking Pencils Marker Marking Tools for Architect Construction