We promise you do not regret choosing our rackets,because: 1.Materials:Full Graphite to make up (included Fram and shaft ),built in T-JOINT,the built-in t-connector no longer USES metallic materials, but instead USES a new type of lightweight plastic mainly made of special epoxy resin. This lightweight resin joint makes the frame more stable and more powerful. 2.High-tech frame design:The Isometric Square Head Shape have larger sweetspot ,improved hit rate.Unique pyramid frame rim ,This design accords with air mechanics,Minimize the resistance to swing,you can faster to hit badminton speed . 3.Maximum string pounds can reach 28 bls,reach the standard of professional racket. 4.Excellent after-sales service:We have Professional after-sales service team to solve customers problems ,if you have questions ,please contact us free .