The 2921 enclosure comes in kit form with a gasket for protection from the elements, a screw on front plate made of Polystyrol material, a wall bracket for easy wall or machine mounting, and a M20 threaded flexible cable gland for applications where a lot of cable movement is expected. Each unit consists of an enclosure body, a removable front panel with stamped gasket, flat-head screws, wall-mount bracket with hardware, and M20 power cord cable grip. The 2921 Mobile Control enclosure has a pre-threaded hole for the cable grip at the bottom. If the grip is not required, it may be filled with a Rose hole plug. Cable grips are designed to give bending protection and strain relief. As an option, a self-adhesive magnet can be attached to the rear of the enclosure.