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 no passage. This type is installed by making a hole in the wall or door. The appropriate door thickness to sandwich is about 3cm, 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 Cold and Heat Insulation 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 ♪ ※ In order to sell at a slightly lower price, we may ship it out of the box due to shipping costs. ♡ 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)