Flex Power Revamp 800 Badminton Racket High-Modulus Graphite - The frame is made with high-quality graphite that improves the strength and durability of the racket until it can withstand a maximum tension of 35lbs. It also generates high repulsion power. Cutting edge nano carbon technology is used to produce an ultra-thin, ultra-tough, aerodynamic shaft, created for a faster, stronger and more intense shot. Flexible shaft racket will deliver more power even for beginners, as it will have a kind of slingshot effect.