The chalk line with a metal reel makes it easy to accurately mark lines on various work surfaces. After filling the reel with marking powder, the string is evenly coated by repeatedly pulling it out and winding it back in. Simply stretch it at the marking location and snap it lightly—the powder creates a thin, clearly visible line.
Uses:
The reel can be filled with the included marking powder or powder purchased separately. After use, simply wind the string back in and refill the powder as needed for further marking.