PetSafe Electronic SmartKey Collar Key Cages The key to a long

The key to a long healthy life is balance

Refill the reservoir with water and watch the bowl automatically fill up with fresh

Comfortable stretchy and adjustable leg cuff

It does not contain ethoxyquin and artificial sweeteners

PetSafe Electronic SmartKey Collar Key Cages The key to a longOnline Only Item Replace a SmartKey or add more pets to your PetSafe Electronic SmartDoor. The SmartKey fits most collar ID tags and uses RFID technology to send a signal that locks and unlocks the door flap when it senses your pet. You can add up to 5 pets to your SmartDoor. Package includes 1 SmartKey and 1 battery (RFA 67). Trust PetSafe to help keep your pet healthy, safe and happy. Unlocks Door for Your Pet The SmartKey lets your pet come and go;