The li ning 3d 90td badminton racket is based on the n90 iii but is evenly balanced which makes it more manoeuvrable and easier to handle during play and practice this racquet is intended for more advanced and serious users and is mid flex with a 85 89g 3 31oz frame the frames low weight and excellent strength comes from its carbon fibre construction and it is supplied with a full length cover to protect it between uses