| YONEX REXIS SPEED 16L(1.25mm) amp; 16(1.30mm) | MADE IN JAPAN SPESIFIKASI Komposisi: Nylon (Multifilament), Polyester, FORTIMO Gauge: 16L - 1.25mm / 16 - 1.30mm Panjang: 12m / 39 ft Recommended Tension: 48-62 lbs / 22-28kg Color: Cool White DESKRIPSI ・Exceptionally responsive and lively with added power from a sea + island structure ・For players of all swing speeds looking for a highly-responsive string with added speed TEKNOLOGI PLASMA BONDING FRF Process amp; Plasma Bonding The REXIS string provides improved power, repulsion, and durability from the innovative FRF (Fusion of Resin Filament) production process. Upgraded at the molecular level for greater elasticity, the super-solid REXIS string structure is produced by filling the gaps of ordinary multifilament string with the new, more flexible material, FORTIMO. FORTIMO is developed by Mitsui Chemicals, Inc.Resin is bonded to nylon filaments by plasma on a molecular level to improve repulsion and durability. FORTIMO The FORTIMO polyurethane material combines flex, repulsion, and durability while maintaining a brilliant white color due to its non-yellowing properties.