For some vases the Meshsmooth modifier is applied (Stack open)

Polys: 23,056
Verts: 23,080

1: L20 x W20 x H40 cm - hand-painted enamel.
2: L17.8 x W17.8 x H35 cm - dark brown
3: L30 x W30 x H32 cm - ball vase
4: L15 x W15 x H26 cm - steel

For Corona render, it is recommended to install version no lower than 1.5, since the glossiness of the materials is adjusted taking into account PBR.

https://www.polspotten.com/en/fr/wavy-vases/Vases-Wavy-Multi-colour.html