Strait-Line 8 oz. Black Chalk 64908THD - The Home Depot

IRWIN Tools STRAIT-LINE 64902 Permanent Marking Chalk, 8-ounce, Red (64902) - Calipers

High-visibility chalk is Ideal for low light conditions and on dark surfaces. Durable formula is weather-resistant and suitable for interior or exterior use. Use to show layout changes and corrections on metal, concrete, lumber, plastic, cardboard and other surfaces.

Irwin 8 oz Chalk - Green

Irwin Strait Line 64901 8 Oz Blue Chalk Refills: Construction Marking Tools: : Tools & Home Improvement

IRWIN Tools STRAIT-LINE Permanent Staining Marking Chalk, Midnight Black, 6ounce (4935520) - Construction Marking Tools

Chalk Lines and Reels - Marking Tools & Layout Tools - The Home Depot

Irwin 64908 Strait Line 8 Ounce Black Permanent Marking Chalk, Each

Strait-Line 6 oz. Dust Off Chalk 4935425 - The Home Depot

Strait-Line 8 oz. Blue Chalk 64901THD - The Home Depot

Irwin 150 Ft. Large-Capacity Chalk Reel 4935079 - The Home Depot

Irwin 150 Ft. Large-Capacity Chalk Reel 4935079 - The Home Depot

Strait-Line 2 lb. Crimson Staining Chalk 4935522 - The Home Depot

IRWIN Tools STRAIT-LINE 64908 Permanent Marking Chalk, 8-ounce, Black (64908) - Chalk Lines