The Yonex Nanoray 10F Badminton Racket comes with Isometric technology which equalizes the length of the main and cross strings in the string bed, enlarging the sweet spot for improved accuracy. The Nanomesh and Carbon Nanotube is an exclusive structural material inserted into the frame and/or shaft of the nanoray series. It significantly increases repulsion power, toughness and impact strength within the racquet. The TFA cap Provides extra shaft flex to accelerate frame recovery after impact. Also provides vibration dampening along with a comfortable fit on your thumb, whilst the Aero frame decreases air resistance and realizes a quicker swing. Colour: Blue Material: Aluminium, Steel Code: 18NR10FGE