Length: 600MM 
Width: 54MM 
Hole: 4MM
Root thickness: 12MM
Weight:  260 Grams/pair

For 50 size heli. Carbon Fiber main rotor blades. Each set is precisely balanced to match center of gravity and weight. Blades have a fully symmetrical shape to add autority to your pitch to do extreme 3D flying and for better stability.Extremely strong no flex like wood blade.