This CMS Magnetics magnetic tool tray measures 10-3/4" in length, 4-1/2" in width, and 1-1/4" in depth and can make any magnetic surface your own personal toolbox. The rugged steel construction of this tray has spot welded seams for an extremely light and strong build and has a high-quality black powder coating that can withstand the everyday rigors of the garage. The 4 grade 8 ceramic magnets on the back, some of the strongest available, provide a solid yet reliable attachment to a magnetic surface. The rubber coatings on the mounting surfaces keep the magnetic tray from sliding around and scratching the surfaces that it's applied to. It also has a rubber coated foot that increases the holding capacity by using the magnets more efficiently by converting the force being applied to the magnets as a direct pulling force instead of a sliding force like most other magnetic trays.