Features: 1.The door flap was made of ABS material, transparent door, solid door flap is easy for your pet to open. 2.Outer frame adopt acrylic material, safe, smooth surface, sturdy and durable. 3.Four rotation ways, convenient for pet to enter and out. 4.Quick positioning of the magnet, silent brush at door flap side, will not make sounds while using. 5.Can be installed at door or wall, wonderful gift for your lovely dog, cat. Specification: Features:_x000D_ 1.The door flap was made of ABS material, transparent door, solid door flap is easy for your pet to open._x000D_ 2.Outer frame adopt acrylic material, safe, smooth surface, sturdy and durable._x000D_ 3.Four rotation ways, convenient for pet to enter and out._x000D_ 4.Quick positioning of the magnet, silent brush at door flap side, will not make sounds while using._x000D_ 5.Can be installed at door or wall, wonderful gift for your lovely dog, cat._x000D_ _x000D_ Specifications:_x000D_ Material: ABS+ Acrylic_x000D_ Optional Color: black, brown, white_x000D_ Size: Approx. 43x36x5cm/16.9x14.2x2in_x000D_ Installation steps: _x000D_ 1.Use tools: pencil, ruler, cutting pliers, chainsaw, drill, screwdriver, tape measure._x000D_ 2 In order to convenient installation of dog door, can remove door to install pet door._x000D_ 3.Cut the paper template along the dotted line position and attach the cut paper template to the door._x000D_ 4.Then use a pencil to draw a square line_x000D_ 5.Use the drill bit to drill holes in four square corners and drill four holes._x000D_ 6.Use a wire saw machine with saw blade, insert the hole into a square line to cut, and remove the door plate._x000D_ 7.Put the door frame inside the pet door into the open door hole_x000D_ 8.Mark the four holes on the door with a pencil_x000D_ 9.Use the drill bit to punch the hole around the marked position to penetrate the door._x000D_ 10.Put the inner door frame of the pet door into the door hole from below and install the screws._x000D_ 11.The dog door is installed, then installed the door_x000D_ 12.Installation is complete._x000D_ _x000D_ Packing List:_x000D_ 1 x Pet inner door_x000D_ 1 x Pet outer door_x000D_ 4 x Screw nut_x000D_ 4 x Screw_x000D_ 1 Bag x Gasket_x000D_ 1 x Instruction