Children's Climbing Frame Type 4
Manufacturer: ADANAT
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Length 315.5 cm
Width 309.5 cm
Height 228.5 cm
Polygons - 2618
Vertices – 2926
Material: metal, wood
Model pivot at 0 mark
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In the archive: 2013 and 2016 MAX (Corona+Vray)+OBJ+MTL+FBX
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The Children's Climbing Frame Type 4 consists of logs made of natural wood, arranged at different heights from each other. By moving along the logs, children develop climbing skills, improve coordination, and cultivate attentiveness and precision.
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https://adanatgroup.ru/katalog/detskoe-igrovoe-oborudovanie/eko-stil/detskie-lazalki/detskaya-lazalka-tip-4/ 
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Those working in V-Ray versions lower than 3.1 should be careful, in the materials section BRDF is set to Microfaset GTR (GGX). If your version is older than 3.1, the BRDF field will be empty. Choose Blinn, Phong, or Ward – whichever is preferable for you.
For Corona render, it is recommended to use a version no lower than 1.5, as the glossiness of materials is configured with PBR in mind.