This is a smooth positive lock action slide, convenient spring loaded lock and release lever. This slide was designed with a wobble free design when locked. This has a high tensile aluminum profile extrusion 13-3/4" x 8" plate. mounting hole pattern 5" x 12" fore and aft travel: 6". It has a spider mount with high tensile aluminum 2-7/8" diameter with plastic internal cup. All Stainless hardware.