Available in metric sizes, RoHS-compliant GN 2404 Steel Telescopic Linear Slides are suited for storage drawers and sliding doors, or in jigmaking for sliding motion in linear direction. If support screw is removed on both sides, sliding distance extends length of rail plus additional distance of slightly more than half length of rail. External elements limit maximum sliding distance; and supports of rail are designed to guard against inadvertent extraction of runner from rail.