Havahart 7110 Small Plastic Pet Door

This pet door fits a hollow or solid door. It has a flexible PVC flap with magnetic energy seal. Accommodates door widths from 7/8″ to 2-1/4″. Opening size 5½”W x 7½”H. For cats up to 15 lbs. or dogs up to 7 lbs., including the Chihuahua, King Charles Spaniel, Toy Terriers, Pekingese, Toy Poodles, and Pug. Recommended for indoor applications or outdoor access to covered areas, as well as outdoor applications for temperate climates. For low to medium usage. (Select a metal door for frequent usage and high-energy dogs, indoor or outdoor.) Door can be installed in three easy steps with a two-piece threaded insert and does not require drilling for screws. Allows your pets the freedom to enter and exit on their own! Made in the USA.