EVERYONE HAS KEYS, WHY NOT KEEP A MAGNET HANDY AS WELL? HOLD YOUR KEYS TO ANY METAL SURFACE WITH THE HANDY POCKET KEY CHAIN MAGNET! FEATURE YOUR LOGO ON THE FLAT WHITE SURFACE AND TEST FOR MAGNETIC AND NON-MAGNETIC METALS. KNOWN IN THE AUTOMOTIVE INDUSTRY AS A STEEL TESTER, THIS MAGNET CAN FIND NON-ATTRACTING GAPS ON VEHICLE SURFACES, WHICH IS A GREAT WAY TO DETECT PREVIOUSLY REPAIRED AREAS. PORTABLE AND FUNCTIONAL, THIS ITEM MAKES THE PERFECT TRADE SHOW GIVEAWAY!. 0.1875" THICK X 0.75" W X 2" L