Pet Safe pet door. New in box. 5 1/8" x 8 1/4" opening. Frame size 7 1/2" x 11". Can be installed in doors or walls. Magnetic catch. Offers are welcome. Low on cash? I'll swap for labor. If you see this ad it's still available. Leave a message and state your phone number twice, my answering machine has a hard time with some calls. Thanks. $20. (860) 583-0000 BRISTOL, CT