are lightweight and very strong. The spline design eliminates
binding and friction, and the non-metal construction prevents radio
interference. These are very easy to install and easy to adjust, and they
utilize temperature compensated materials to minimize thermal expansion.
are for large models or high strength applications. They use 4-40 hardware
and are for uses where turns are slight or the length is over 48". The
strength is 80 lbs. and the clevises are not included. The overall length is