Carpenter refills are bright and uniform in color, the lines are , without caking and breaking; Especially good for your marking work on dark surfaces these white blue and green refills are made of safe and waterproof wax material, with high melting point of up to 194F and will not melt easily, with long service life these pen refills can be widely applied in wood, metal, paper, clothing cloth, glass, ceramics and other industrial processing production for marking the 2.8 mm pencil refill is more suitable for deep hole drawing than others; It is a good helper for your construction work; Each kit comes in a portable plastic box to prevent breakage of the refill and easy to save 4 pack pen refill set, which includes 8 white, 8 blue, 8 green refills, can be chosen according to your needs Features: Waterproof Bright and uniform color High melting point up to 194F 2.8 mm are suitable for deep hole work, and widely applied in wood, metal, paper, clothing cloth, glass, ceramics and so on. Especially good for your marking work on dark surfaces. Specifications: Material: Plastic+graphite Color: As Shown Size: 2.8 mm Package Contents:: 8 x White refills 8 x Blue refills 8 x Green refills Only the above package content, other products are not included. Note: Light reflection and different displays may cause the color of the item in the picture a little different from the real thing. The measurement allowed error is +/- 1-3cm.