This classic stretchy string measures approx. 1.0mm thick. Sold per spool of approximately 10 meters (about 30 feet).

This classic string measures approx. 0.5mm thick. Sold per spool of approximately 20 meters (about 60 feet).

This classic string measures approx. 0.8mm thick. Sold per spool of approximately 10 meters (about 30 feet).