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Cat door

https://3dsky.org/3dmodels/show/dver_dlia_koshek

Platform: 3dsMax 2016 + obj Render: Vray+Corona

A pet door will allow your pet to move around the apartment and country house without disturbing the owners. The door is installed on the interior or entrance door of a house or apartment. The tunnel is built into the door; if necessary, it can be cut to the desired door thickness. The pet door is made of high-quality material that does not change color during use. The cat hole is very easy to use
-Pile + magnet;
-Silently opens and closes;
-With 4 mode locking

https://market.yandex.ru/product--dvertsa-dlia-koshek/1860577301?sku=102017317977&uniqueId=62063890&do-waremd5=6ZAGL5QP3oGb8AGL8kOhIQ&sponsored=1 

Files in the folder version for 3ds max 2016 + OBJ
Corona 6 materials
Vray 5 materials