The yonex duora 7 is an advanced badminton racket packed with technologies designed to enhance performance on the court being part of the duora series this racquet encourages harder forehand and faster backhand shots so you can dominate rallies and opponents the isometric head shape increases the size of the sweet spot giving you more power and forgiveness and this stiff racket has an even balance for a combination of power and manoeuvrability other technologies used work to reduce weight y