Cat Mate Elite Super Selective Cat Flap includes 2 electronic I.D. Discs (up to 8 unique I.D. Discs possible) to control individual entry and exit through the flap and keep all other animals out. LCD Display shows selected entry and exit lock status, cat location and time since flap last used for up to 3 selected cats. Dimensions: 9.75" X 10.375" Please note that this product may only ship via UPS dimensional weight, which is above its actual weight.