Genji Sports Durable Multifilament Fiber badminton String 5 sets This order is for 5 sets of Genji Sports durable badminton string Each set is 10.5m or 33 feet, good for one badminton racket. String is made from Multifilament fiber core, 0.75 mm diameter. Very durable string, keep tension for long time, good power. Specail 5 sets trail pack, discount for large quantity