I'll give you answers one by one. I sold badminton rackets before Xi 'an. I hope it helps you. YY's 9900, the official market price is 1720 yuan, and the general agent in China is Wei Jian and Guangzhou. The futures price is 5.3 fold, and the spot price is 5.6 fold. Can you work out 300? Can 400 yuan buy it? U stands for weight, 2U is 90-94.9g, 3U is 85-89.9g, 4U is 80-84.9g, and G is the thickness of wooden handle. The larger the number of g, the thicker the wooden handle. There are several versions of the beat, such as SP, ch, China, JP and TW in Taiwan Province Province. NBG95 line market price in 75 yuan, BG65 line in 48 yuan. The diameter of line 95 is 6.9cm, and that of line 65 is 7.0. The thicker the line diameter is, of course, the weaker the elasticity of playing, the worse the ball control, and the sound of line 95 is good. It contains nano, that is, nano material, which is 10 times higher than ordinary nano carbon. If you have good strength, you can make good use of NS9900, such as killing the ball. If you are weak, take a bow and arrow 7 or NS4500 and hit slowly. If you need anything, you can add me QQ25205749 1, and I can answer your questions. I hope it will be adopted.