PROTECTA RTU's Mouse Bait Station. Patented design features strategically angled entry holes that allow it to fit flush against a wall or snug in a corner. An interior baffle layout leads mice, once they enter, directly to the bait placed inside. The Protecta RTU measures 5"L x 4"W x 1.25"H. The Protecta RTU keeps your bait placement safe as it can only be opened with the two-pronged key sold seperately.