A set of equipment for sports grounds from the famous Finnish manufacturer Lappset:

081007M - DIP BAR
081004M - SIT-UP
081002M - AIR WALKER
081008M - CORE TWISTER
081003M - PULL-UP

Links to the manufacturer's website:
https://www.lappset.com/Products/Product/dip-bar/081007M 
https://www.lappset.com/Products/Product/sit-up/081004M 
https://www.lappset.com/Products/Product/air-walker/081002M 
https://www.lappset.com/Products/Product/core-twister/081008M 
https://www.lappset.com/Products/Product/pull-up/081003M 

faces: 22582
Verts: 23763

Vray: 5.10.03. Those who work in V-Ray versions lower than 3.1, be careful, in the materials in the BRDF section there is Microfaset GTR ( GGX ), if your version is older than 3.1, then the BRDF field will be empty. Choose Blinn, Phong or Ward - whichever suits you best.

Corona 7.0. For Corona render, it is recommended to install a version of at least 1.5, since the glossiness of materials is configured with PBR in mind.

3dsMax2016+fbx and textures files included.