MS-5 Designer Series Blue Cat Safety Collar Fence System Accessories then the magnets are separated

then the magnets are separated one pair at a time as your pet moves through the opening allowing a minimum of pet generated force to open the flap

security and energy efficiency

it is designed to be surface mounted to your door or wall

The collar also features an ultrasonic transmitter that controls optional electronic pet doors

They are the most durable pet doors you can buy

MS-5 Designer Series Blue Cat Safety Collar Fence System Accessories then the magnets are separatedCat Safe Stretch Breakaway Design Designed with your cats safety in mind, this collar features a stretchy elastic section that allows the collar to expand and slip off if your cat gets caught, helping reduce the risk of injury while exploring indoors or outdoors. Advanced Technology, Trusted Performance Built with state of the art digital circuitry, this collar delivers a strong, reliable signal while maintaining accuracy across all temperature