Apacs Lurid Power 21 Badminton Racket Isometric head frame - Equalizes the length of main and cross strings in the stringbed, enlarging the sweet-spot for more consistent accuracy even on off-center hits. Reinforced Structure Frame -The new material is adopted in the frame in order to make the frame Ultra high Strength & Stiffness. As a result it can handle string tension of up to 35lbs. CNT Carbon Nanotube - The new material CNT Carbon Nanotube is adopted in both sides of the frame in order to give strength and perseverance. It holds large amount of energy at the impact, and releases it back like an arrow. It gives you depth and control in your game. The strength and flexibility of CNT Carbon Nanotube will lead your game into the next level. Slim Head + Thin Shaft - The High Speed Frame design is an aerodynamic shape frame designed to reduce drag on the frame during straight on swing or hit. Resulting in a fast swing-through and the quicker maneuverability. Adjustable Balance Point - The lastest adjustable balance point technology from Apacs allow player to change the head heavy or head light feel of the racket by just changing the Balancing Cap. This allow the racket to adapt to the player mood and preference instead of the player adapting to the racket.