Plastic winder - ABS, the body of the winder is made of ABS plastic - it is resistant to breaking, string length 30m, use: marking of transitions - lines in construction, painting, SDK,..., after filling with the enclosed powder (blue - can be ordered: blue 37096, light-blue 37094, red 37097, light-red 37095, black 37098), procedure: fill the winder with the enclosed powder, color it by shaking and repeatedly pulling out and re-winding the string, then, in two pairs, stretch the string in the required place to mark the line and lightly strum - this applies the powder caught on the string in a thin layer to the marked material, then we wind the string, or again we add powder, packaging: blister with euro hole.