IRWIN Tools STRAIT-LINE 65104 Standard Marking Chalk, 5-pound, White (65104)

Very Nice, Works well

I have useless product for years for my concrete jobs. I like it because it’s temporary so after I saw cut the concrete and as soon as I spray sealer, it disappears it doesn’t stay there for 20 years like the red or blue chalk

Works as advertised

Needed some chalk that I could use on finish work.

The powder doesn’t last long.

If you thought this was a big jug of white chalk then you would be correct. I bought this for chalking dark surfaces and gray surfaces and when there's enough chalk on the string it's easily to be seen. When there's not enough chalk on the string it becomes harder to see. If the surface is dark in advance easy to see. This is white chalk in powder form. Works as described.

I am very happy, great product.

Ever tried to draw a body line on grass with a piece of chalk? not possible. use this instead and the kids will believe you when you tell them uncle Freddy passed away and won't be coming for Christmas dinner. or better yet, pour it in your friend's A/C vent in his car after he parks. when he fired up the A/C he'll think his car exploded and he's been blown up by terrorists! works every time! (not counting when the kids got me with the same prank). They taught me, but I PERFECTED IT!