Goods Shed: 38 x 23 x 21(H) mm \ 1.50" x 0.91" x 0.83". Scale: Z Scale \ 1:220. Small House: 16 x 27 x 19(H) mm \ 0.63" x 1.06" x 0.75". Just like most other 3D-printed products, when you look at it carefully you see the printing patterns, paint can be used to cover them if you don't want them visible.
eBay