Size: L: 25 x 23.5 x 5.5 cm Weight: L: 496g (Note: The S size is suitable for glass doors and thin doors, and cannot be installed on thick doors) This is a pet door that allows your cats and small dogs to come and go freely. It has 4 settings: one-way (exit only/entry only), free passage, and prohibited passage. This type is installed by making a hole in the wall or door. A door thickness of about 3 cm is suitable for the door to be sandwiched, but it can be used if you prepare longer screws and sandwich it if it is thick. CEESC 4-Way Pet Door Small Dog Cat Pet Entrance Door Doorway Entrance Cold and Heat Insulation Measures with Japanese Instruction Manual (Brown, Large) ♡ Unused, but opened for inspection ♡ First come, first served for only one item ♡ Please understand that it will be stored at home and shipped in simple packaging before purchasing! ♡ Free shipping ♪ ※ Due to shipping costs, we may ship it out of the box to make it cheaper. ♡ Anonymous shipping is OK(^^) → Items shipped by regular mail cannot be shipped anonymously, so please comment. ♡ Welcome to buy in bulk(^^) Please feel free to comment! ♡ Purchase without comment: OK ♡ Immediate purchase/midnight silent purchase: OK #Yuppi's products (11-6 12-2 1899)