Check the listing for details. Calculated Industries 8105 Blind Mark Magnetic Drywall Locator Tool. Condition: New. Listed at 29.95 USD. This item is Brand New in Perfect Condition! We are a legitimate business specializing in calculator products and are dedicated to accurately and efficiently serving our customers - check our About Me page for details! Perfect for first-time DIYs or the experienced handy-person, the Blind Mark electrical outlet locator uses powerful rare-earth magnets to help you accurately locate and cut electrical outlet access holes in drywall, sheet rock, paneling and other materials with no measuring required. Eliminates costly measuring errors, keeps wasted drywall sheets out of landfills and improves your productivity. Other drywall locator methods require you to lift and lower heavy drywall sheets multiple times to mark, cut, then install. With the Blind Mark you simply put it up once, cut the hole and you're done. Includes: 3 Target Magnets, 1 Target Locator magnet, Rugged carrying case