Uberschall F2 speed demon - Slim shaft, Speed-8 top cap and aerodynamic sword frame cuts through the air quicker Head heavy balance helps to increase power from the rear Balance: Head Heavy 295-300mm Factory Strung with all-round performance & durable Adidas Power Balance 69 string Flex: Medium/Stiff Full Length heavily padded cover Unstrung weight: 83 grams Maintenance and stringing guide booklet Adidas Uberschall F66 Badminton String Set Yellow Most powerful & aerodynamically fast Adidas string Great hitting sound Incredible repulsion Easy power Gauge: 0.66mm £65 ONO, brand new & actually unused, handle wrapped with stickers & hologram