1. MATERIAL – The PET flap is crafted from ABS material, featuring a smooth surface, exceptional durability, and quality. 2. PET CAT AND DOG FLAP SIZE – Available in 3 sizes to suit your pet's needs: **Large**: Outer dimensions – 25 x 23.5 x 5.5 cm (H x W x D), Inner dimensions – 19 x 18 cm (H x W). **Medium**: Outer dimensions – 20 x 19.2 x 5.5 cm (H x W x D), Inner dimensions – 15.5 x 14.7 cm (H x W). **Small**: Outer dimensions – 20 x 19.2 x 1.8 cm (H x W x D), Inner dimensions – 15.5 x 14.7 cm (H x W). 3. 4WAY LOCK – The pet door features a 4mode locking system. Adjustable via labeled red and green switches, it allows settings for entryonly, exitonly, passage, or complete lock. Provides flexibility to keep pets in or out while giving them the freedom to move without disturbing you. 4. THOUGHTFUL DESIGN TRANSPARENT VISIBILITY – The clear flap design, preferred by most pets, allows them to see through the door. The outer cover is waterproof, and the brush strip minimizes noise when closing, ensuring a peaceful environment for both pets and owners.