Two Unlock Modes:Use card to unlock(this is perfect to use );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 ,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: 1x Lock without batteries 1x (Blue,work at about 2.5CM distance) 1x ID Card(work at about 4.5CM distance) 1x Pack of Screws Only the above package content, other products are not included. Note: Light and different displays may cause the color of the item in the picture a little different from the real thing. The measurement allowed error is +/- 1-3cm.