PetSafe® Staywell® Magnetic 4-Way Locking Classic Cat Flap, White

4 locking settings – Set to Fully Locked, In Only, Out Only, In or OutGive your cat unlimited access – Your cat can let herself in and out of the house, even when the human door is closedTunnel extension – This cat flap can be paired with an extension tunnel to accommodate for extra-wide walls or doorsSelective entry – Pairs with your cat’s magnetic collar key to gain entry