Overview: Brand new high quality, high gloss carbon fiber, 62MM TAIL BLADE upgrade for the popular T-REX SE/XL & many other similar size Helicopter. Hole: 2MMRoot thickness: 2.5MMCarbon Fiber tail rotor blades for T-rex size helicopters & similar. Each set is precisely balanced to match center of gravity & weight. Blades have a fully symmetrical shape to add autority to your tail to do extreme 3D flying & for better stability. Extremely strong no flex. Blade length is measured from the center of the blade bolt to the blade tip. Specification: Weight Approx:27g Size Approx:7 x 2 x 1