Rex means King. This is Yonex's King of Comfort. This is a true mulitfilament with lots of power. Those looking for an arm-friendly string, REXIS is King.
Yonex Rexis (Natural)
This product is sold in a 3-Pack ONLY.
Yonex offers us a great multifilament packed with improved power, repulsion, and durability with the innovative FRF production process & world’s first string with more flexible material FORTIMO(TM).