Boyesen Pro Series Reeds - PRO210 - Get the edge of Boyesens patented dual-stage reed design plus the latest in carbon fiber technology - Carbon fiber top reed and a durable fiberglass/epoxy bottom reed - Features the quickest acceleration any reed can offer while maximizing horsepower and torque - Quick and precise response to changes in piston speed delivers smooth, dependable throttle response - You wont sacrifice reed life as you might with traditional carbon fiber reeds - Created for the newest 2-stroke technologies Sold as Pairs Part No. 05-P210 (oro2u.com)