SAC produces replacement metal landing gear for many aircraft kits in many different scales. The replacement gear can be a big help in larger, heavier kits that may require lots of weight in the nose area to allow them to sit correctly or for gear that is inherently fragile in its design.
This set is for the newer mold Revell of Germany Panavia Tornado kits (GR.1/IDC/ECR), a great kit by itself, with excellent detail and engineering. The SAC gear, for this application, gives the builder a comparable level of excellent detail (see the side-by-side photo of the assembled and painted parts and try to decide which is kit and which is SAC) and one less step in the assembly process of the main gear legs. The one detractor I found in using the SAC main gear legs is that the attachment block/peg was not properly molded on either gear leg, so proper alignment and location would be left to the Mk. 1 eyeball of the builder.