True to our commitment to DIYers, this magnet is the very same used on our MagMaster belt magnet. It's designed in-house and custom made for Holstery with a massive, 3/16" x 1" N52 neodymium magnet covered in a protective rubber to keep your tools safe.Some will recognized this as a "gun magnet" and it's certainly up to the task. I've been able to hold a pistol and mag really securely for range days. It would work great in a truck or car or underneath your desk as well. It is stronger than most gun magnets, but I figured it was unlikely anyone was going to wish for a weaker magnet.Here are some other ideas for this useful little gadget:Knife holder for the kitchenTool holder for your workshopPut a steel disk on your phone and stick your phone anywhereConcealed gun holder in your car, truck, under a table or deskHandy dandy screw or bolt holder on your creeper or ladderWorld's most overkill fridge magnetYou'll need the basic dimensions. Holes are sized for a #104 rivet (0.157" diameter) but can easily be drilled out for any screw or bolt. A #6 screw should work fine with no changes.DIMENSIONS1.83" hole spacing left-right1.41" wide2.26" long0.35" thick