The Xtra Slim Shaft reduces drag and enables the racquet to be highly responsive. The thickness of the shaft reduces overall racquet weight and thus creating high speed smashes with ease. Designed to reduce drag yet maintain the structural integrity of a traditional box frame, The AeroBox Frame results in a faster swing. Length: 675mm Weight: 3u (86g) Flex: Medium Balance: 295mm Max Tension: 30lbs Construction: Japan Hmg T40