... durable 3)With CE,CCC,ISO9001,ect The size of the key switch ( lock box )is about 15*9* ... the remote control can't used,you can use key switch for opening roling door. "Pursuing quality,permanent ... our motto. With the positive attitude of keeping-improving and the spirit of striving,exploring and being responsible,we ... ZhangZhou JinAn Electric & Machine Co.,Ltd. Stainless manual Key switch ( lock box )