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

This classic string measures approx. 0.7mm thick. Sold per spool of approximately 15 meters (about 45 feet).

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