Tactile switch with lock ,2pin {PS851-02) 1.professional manufacturer 2. ROHS ... Description of product ; 8.5*8.5 key-press swith , Tactile switch with lock,Auto lock switches Picture for PS851-02: NON ... mm, 5.8*5.8mm,7*7mm,8.5*8.5mm 2.Lock or non-lock function when push the button ... cap with inner size :3*2 mm 8.5*8.5mm Key-press switch with 6pin,2mm knob,ROHS certificate