Irwin Strait-Line Permanent Staining Chalk Size:4 lbs Speed Wheel is adjustable to

Speed Wheel is adjustable to your tension preference

Durable tool and easy to use

Used for 4-786 12" Classic Flat Box/4-789 12" Classic MEGA Flat Box

O ring seal for attachments

You get the best of both

Irwin Strait-Line Permanent Staining Chalk Size:4 lbs Speed Wheel is adjustable toIRWIN STRAIT LINE Permanent Staining Chalk is great for extreme outdoor conditions because it can withstand harsh weather conditions and months of jobsite wear. Chalk containers are filled by weight not volume. Features Great for chalk line refill Permanent staining marking chalk For exterior use Visible after weeks of weather exposure and jobsite wear Stains surface and reduces need for spray sealant