PetSafe 4-Way Locking Interior Cat Door Small White P1-4W-11 PetSafe 4-Way Locking Interior Cat Door provides controlled access for your feline friend within your home. Designed for cats up to 15 lbs, this small white pet door features a unique flap action that creates a tight seal when closed. The versatile 4-way locking system allows you to set the door to In Only, Out Only, Opened, or Locked, giving you full control over your pet's movement between rooms. It is compatible with paneled, wood, storm, and PVC/metal doors ranging from 1/16" to 2" thick. The durable design is easy to install with the included template and hardware. Measurements: • Flap Opening: 5.5"W x 6.125"H • Cut Out Size: 6.3125"W x 6.6875"H • Outer Frame Size: 7.5"W x 8.375"H