Two Unlock Modes:Use card to unlock(this is perfect to use at home);User card + Management card to unlock(this is perfect to use at business,such as hotel,massage etc). This Electronic Cabinet Lock Kit Set is used for cabinet,drawer,locker,storage box and etc.for household or business:supermarket,sauna club,gym,swimming stadiums,library,factory and office. Use ID card to Press outside of cabinet,it lock will flick and open the door(Note:the tag only can be used for Max.2.5cm thick door,the ID card can be used for Max.4.5cm thick door). It can provide good safety protection of your personal items while protecting your privacy.It also can improve children's safety at home,avoid your children or kids free to open the drawers or cabinet doors. color:grey Material:ABS + electronic components Product size:86*63*29mm Package Contents: 4x Lock without batteries 4x ID Tag(Blue,work at about 2.5CM distance) 4x ID Card(work at about 4.5CM distance) 4x Pack of Screws