Features: Flap Pet Door: Our pet door give your dogs and cats freedom to in and out without your help, they will love their new furniture as well to protect their kennel or house without stray pet bothering. Safety Design: The flap door edge featured with silent brush which silent and smooth safety edge and prevent scuffing their skin, allow pet to enter and exit freely Controllable Entry Access Direction:The pet door designed with 4 controllable access directions to meet your different requirement, convenient for pet using, safety to block stray pet kitten, dogs, and give your pet safety rest place. Easy Installation: Out pet door set attach with instructions which easy to install, before purchase please check your entry pet door thickness and select the appropriate size pet door. Selected Material: The pet door use ABS-Plastic material, nontoxic, safety and wear resistant, as well with stand pet paw scratching. Specifications: Material: ABS-Plastic Product Size: Appr. Small-size 20x19x1.8cm/7.87x7.48x0.7inch, Medium-size 20x19x5.5cm/7.87x7.48x2.16inch, L-size 25x23.6x5.5cm/9.84x9.25x2.16inch, X-L-size 28x25-x5.5cm/11.02x9.84x2.16inch Style Option: White(Small)-/White(Medium)/White(L)/White(X-L)/Brown(Small)/Brown(Medium)/Brown(L)/Brown(X-L)/Black(Small-)/Black(Medium)/Black(L)/Black(X-L) Package Includes: 1 x Controllable Flap Pet Door note: Please allow 1-2cm errors due to manual measurement. Due to the difference between different monitors, the picture may not reflect the actual color of the item.