Our new “HMX” pre-preg carbon graphite extensions are light, feather-lite. As far as we know they are the lightest extensions in windsurfing. They have an incredible strength to weight ratio. With our first quality pre-preg carbon fiber material and our meticulous manufacturing process we have developed the strongest, lightest extensions possible. Compare the weight to any other like extension. The 2 centimeter adjustment settings are set with a hard anodized aluminum collar tethered with a spectra line to a stainless steel pin. Fail-safe and virtually break proof . Finally we attach our new beefy “Power-Six” super powerful 6:1 downhaul cleat with large diameter pulleys perpendicular for power, easy rigging and no crossed lines. A tough Dyneema “super downhaul” line is included.