I present a 3D model of plant pots. The reference for the 3D model was the Arket Plant Pots designed by Christian Sophus Hansen and Tommy Hildahl.

During rendering, the TurboSmooth modifier was used with 1 smoothing iteration. In the max file, the stack is not collapsed. The obj file contains an unsmoothed model.

Links:
https://101cph.com/collections/arket-plant-pots/products/arket-plant-pot-big-dark-grey 
https://101cph.com/products/arket-plant-pot-medio-dark-grey 
https://101cph.com/products/arket-plant-pot-mini-dark-grey 
https://101cph.com/products/arket-plant-pot-petit-dark-grey 

Geometry is collected in a separate layer for easy import. All materials and objects are logically named. Paths to textures are trimmed.
For Corona render, it is recommended to install version not lower than 1.5, since the glossiness of materials is configured taking into account PBR.