This is a Zbrush model. The Hand Wrap has 2 subtools: Arm and HandWrap
The Arm subtool has 6 subdivisions. The Handwrap subtool has 8 subdivisions.
The tools are exported on its lowest, medium and highest subdivisions to three file formats: OBJ (Wavefront file format), gITF(GL Transmission Format 2.0) and FBX(2020).
In the lowest subdivision, the Arm is 186 polygons and the HandWrap is 274 polygons In the medium subdivision, the Arm is 744 polygons and the HandWrap is 352 polygons In the highest subdivision, the Arm is 190464 polygons and the HandWrap is 1441792 polygons
Every exported format file is in a different rar file (except three duplicated samples for CGTrader to be able to read the file types which you can ignore).
The images are screenshots from Zbrush.