Magnetic stud finder "Dokodai" compatible with walls up to 35mm thick ● Stud finder with a needle for gypsum boards ● Detects wooden studs behind the board by piercing with a needle ● Graduated scale indicates the approximate thickness of the wall where the needle was inserted ● Can be used for installing earthquake-resistant furniture brackets, curtain rails, and other hardware, as well as for mounting picture frames, handrails, towel hangers, etc. 【Specifications】 ● Body size: 189 x 28 x 22mm ● Product weight: 41g ● Materials: Body: ABS resin; Movable cover: Polycarbonate resin, ABS resin, stainless steel, brass, neodymium magnet ● Detectable wall thickness (needle): 35mm ● Detectable wall thickness (magnet): Wall thickness: 13mm, Ceiling thickness: 12mm