Four Paws Safety Screen Covers are available in a variety of sizes and styles to meet the needs of all small animal and reptile enthusiasts. They are available with a solid screen, a self -locking convenient door, a heavy wire screen or a locking screen cover. They are all designed with a unique locking action system to insure the pet's safety. They are made with a durable frame and stainless steel wire. 10 Gal Easy Lock Screen Cover.