You don't have to make a hole on the hole. So, you can do it if you rent a room. I attached a transparent step as well. / @wabisabich Please subscribe this channel!■Playlist of Yukimichan • 真っ白な子猫を保護しました【初日】 ■Mama Blog#Yukimichan#WabiSabiChannel#HowToMakeCatShelves#CatShelvesByMyself#CatShelves