Dimensions:
Artika Sky -1: 20 x 20 x H23 cm
Artika Sky -3: 14 x 7 x H29 cm

PBR Textures:
BaseColor, Metallic, Normal, Roughness
4096x4096

Available Formats:
3ds Max 2017, V-Ray (PBR), Corona 7 (PhysicalMtl)
Fbx

Polygons: 70,076
Vertices: 70,080
Textures: Yes
Materials: Yes
UV Mapping: Yes
Unwrapped UVs: Non-overlapping
Plugins used: No

Who works in the V-Ray version is lower than 3.1. Be careful, the materials in the BRDF section are Microfacet GTR (GGX), if your version is older than 3.1, then the BRDF field will be empty. Choose Blinn, Phong or Ward - which is preferable for you.