StudBoss Digital LCD Stud Finder with Video Guide and 9 Volt Battery PLEASE REMEMBER***: Stud Finders are only Guides and an Imperfect Product like Most Stud Finders - Many Factors Can Give False Positives But Worry Not!! - The Majority Of Wall Studs are 16 INCHES Apart !! Handy Tips and Hints Included + You Can Also Tap on Wall For Sound Differences + Use A Tape Measure = Stud Found! 3 MODE SELECTION: Select From Wall Studs to Metal Pipes & Ac Wire Wires. Scans Up to 19MM DEEP EASY TO USE: Hanging Your Latest TV? Family Picture Frame? Mirror ? Anything that Needs to Be Screwed Into Stud or Located For Safety Reasons DONT KNOW HOW TO USE A STUD FINDER ? Dont Worry - You'll Appreciate Our Detailed and Informative VIDEO - You'll Be Finding Studs in NO Time! Ladies - Need a Man? lol Last of Stock - SALE PRICE OF $16.50 Normally $28.95 - 9 Volt Battery Inc. Etc - Have A Great Day and Thanks For Looking at our Item