Irwin STRAIT-LINE® Marking chalks have a newly engineered flip-top cap that keeps the chalk in the bottle where you want it and stops it from spilling out in areas that you don't. The flip-top cap, available on all Irwin STRAIT-LINE® chalk bottles, seals the chalk in an air-tight chamber, keeping out moisture and reducing the risk of clumping.
Color | : | Midnight Black |
Compositions | : | Black Iron Oxide-Pigment Black 11, Talc, Silica |
Form | : | Powder |
Odor/Scent | : | Odorless |
Package Size | : | 6 oz |
Relative Density | : | 4.4 to 4.6 |