The GrippyTek magnet GUARANTEES the Highest Quality High grade Neodymium magnets that are rated at 43 lbs. Single piece metal design, build for strength and durability. Thick high quality rubber cover protecting from any scratching.Smooth Unique Design is Sleek with a 3.75″L x 1.4″W x 0.30″H design that allows for a low-key concealed mount.