Feature:1. Reliable Use: The black refills are made of graphite, and the the red and yellow refills are made of tinted wax, waterproof.2. Smart Design: Long length and fine tip enables easy work in hard to get area, not easy to break and won't get hands dirty.3. Three Colour: Comes with three colours, red, yellow and black, which will satisfy your working needs in a variety of place.4. Wide Utility: Enables flexible application in drawing and marking on metal, plastic, glass, wood, paper and other material.5. 24Pcs in All: There are 24pcs carpenter pencil refill in total, and the large quantity will simplify the replacement.Specification:Item Type: Carpenter Pencil Package Contents: 2 Box of Red and Yellow Dual Colour Carpenter Pencil Refills (3pcs Red and 3pcs Yellow)2 Box of 2.8mm Black Carpenter Pencil Refills.Package List:2 Box of Red and Yellow Dual Colour Carpenter Pencil Refills (3pcs Red and 3pcs Yellow)2 Box of 2.8mm Black Carpenter Pencil Refills