The Offensive CR blade is available WITH or WITHOUT the WRB system. This WRB Offensive CR WRB does have the WRB System. (All the CR blades have the WRB system except one) An attacking, lightweight blade. Offensive Classic CR is built to suite fast and technical attacking play. Increased speed with maintained “STIGA touch” because of the CR system. WRB: W– Weight balance. The balance of the blade is scientifically moved to the point contact is made with the ball. R– Rate of recovery. Due to the decrease in blade weight the player improves his rate of recovery after each stroke. B– Ball sensitivity. The scientifically positioned recess in the handle provides extra sensitivity of touch.