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IRWIN® STRAIT-LINE® marking chalks have an innovative flip top cap that keeps the chalk in the bottle where you want it. The flip top cap seals the chalk in an airtight chamber, keeping out moisture and reducing the risk of clumping.
IRWIN® STRAIT-LINE® Marking Chalk Refill, 5 oz Net Content, Bottle Container, Powder Form, Hi-Viz Orange, Composition: Calcium Carbonate, Fluorescent Orange, Silica (Crystalline Quartz), 2.6 to 2.65 Specific Gravity, 2.6 to 2.65 Relative Density
| Color | : | Hi-Viz Orange |
| Composition | : | Calcium Carbonate, Fluorescent Orange, Silica (Crystalline Quartz) |
| Container Type | : | Bottle |
| Form | : | Powder |
| Net Content | : | 5 oz |
| Relative Density | : | 2.6 to 2.65 |
| Specific Gravity | : | 2.6 to 2.65 |