This finely engineered servo tray is the cutting edge method for mounting wing servos in high performance aircraft. The servo trays have an outboard ball bearing that helps to carry the servo shaft loads and greatly reduces servo play. Reduced servo play equals less flutter.
Not only are these frames very rigid mounts for your servos, they also make servo installation and removal much easier.
This version is designed to work with the MKS DS6125, and the HBL6625HV. Sold as a pair.
(Pictures are of the nearly identical KST version.)