Irwin 65101ZR Strait-Line Standard Marking Chalk, 5 lb, Bottle, Blue

White marking chalk in 5 lb bulk bottle lays down clean lines on dark roofing, asphalt, and substrate where colored chalk reads poorly. Standard formula removes with weather and traffic. Roofers,...

Strait-Line 65201 standard marking chalk in a 2.5 lb bottle, formulated in blue for permanent line visibility on lumber, masonry, and concrete. Refill bottle works with standard chalk reels for...

Blue standard marking chalk in 8 oz bottle refills chalk reels for layout and trade marking. Standard formula removes from most surfaces. Carpenters, electricians, and drywall crews use blue chalk...

Red permanent staining chalk in 5 lb bulk bottle marks layout lines that withstand weather, traffic, and exposure. Roofing, exterior, and outdoor concrete crews use staining chalk where marks must...

Strait-Line 65202 standard chalk refill in a 2.5 lb bottle, red color formulated for permanent marks on rough lumber, concrete, and steel. Pairs with standard chalk reels for layout work, framing,...