Abstract: An apparatus for use in detecting at least one object hidden behind a wall or surface such as a metal fastener finder or a metal stud finder including a handle and a flexible member. The handle has a proximal end and a distal end and has a size and shape for being grasped by a hand of a user. The flexible member extends from the distal end of the handle, is movable or bendable independently of the handle, and includes multiple magnetic elements that are spaced apart from each other such that when a magnetic element is attracted to at least one hidden object, the flexible member bends to accommodate magnetic attraction between the at least one magnetic element and the at least one hidden object.