1.75mm - Yellow, Silver, Red, Orange, Blue, Green and Black
 
If you do not know what Zing-it! is, here is the official bumph;
 
"Lash-It!/Zing-It! yields the highest strength, lightest weight, lowest stretch, and longest wear life available. The Samthane coating adds to the twine's wear life, ensures its knot-holding capability, and gives it a distinctive colour.
 
We also sell 180ft mini reels of 1.75mm on the website. 
 
We sell in 5-metre lengths but send as one continuous length if you buy multiple lengths. i.e. buy three units and receive 15 metres.  Need a different length, let us know.