Stretch Magic. Clear Stretchy Cord. Medium 7mm Width, 25 Meter Spool. Everybody's favorite stretchy cord. Knottable. (If you want something you can use with a needle, check our Opelon Floss stretch cord). Quantity: Each lot consists of 1 spool of 25 meters (more than 25 yards) of clear.7mm Stretch Magic brand stretch cord.