1:coin lock made of stainless steel,anti drill,anti pry and anti rust;
2:two lock cylinders
--user key made by laser,which cant be copied to improve security in publice use
--manage key replace user cylinder easily when mising user key
3:coin lock load and unload into the locker by manage key;
4:two charge systems available,coin free or coin charge;
5:coin lock is adjustable to different country coin;