CX Propeller were designed to allow fine tuning of an model airplane for peak performance and are rapidly becoming the most popular choice with RC Plane flyers home and abroad. CX Props features are as follows: 1) Dandy Prop Materials CX Prop is made from beautiful&premium grade Germany and French beech wood and special hard plywood which combines with our continuous R&D and craftsmanship. All woods are carefully selected for better strength and rigidity with minimum deformation , We assure you each propeller is pre-treated and finished with a hard satin finish. 2) Greater thrust with lower noise CX Prop offers greater thrust with lower noise proved by propeller tests for many times. 3) Excellent static&dynamic balance Every CX Propeller offers excellent static and dynamic balance through controlled symmetry, weight, angle, diameter and width which minimizes active vibration. 4) Accurate pitch and blade section Each Propeller is digitally machined for the perfect pitch and blade cross-section, They have worked by experienced technicians to guarantee the best aerodynamic performance possible.