The MIGHTY MAG Series, to assist in resolving the installer's problem of drilling into the new thinner, vinyl windows. These rare earth magnets are less than 1/8" high and install fast and easily without worry over damage to the window itself. GRI's Mighty Magnets make use of a rare earth alloy which allows the size of the magnet to be significantly reduced while still retaining or improving the gap involved. Paired with GRI's 3/8" Press To Fit contacts, this new series offers a standard gap of 3/4"+ and on wide gaps, 1"+. These rare earth magnets can be mounted with the mounting screws and/or double stick tape included in the bag or may glued into the window.