Height-Adjustable Adjustable height swivel button allows the pet door for sliding glass door to be adjusted up to 7FT for a variety of use scenarios T-Lock Design You can avoid small animal disturbance with T-locks, closure covers, and weather stripping to increase home security and control pet access when needed Ideal for Tenants: No need to cause damage to the door, easy to install Screen Design:It can keep the air circulating in hot summer, and the upgraded high transparent plastic board can be loaded freely, windproof and rainproof Magnetic PVC Door Curtains: They facilitate the free entry and exit of cats and dogs of all sizes, and also prevent the intrusion of dust and foreign objects.