Price 25$ on Unity Asset Store: https://assetstore.unity.com/packages/tools/physics/hand-physics-controller-21105
But now you can download Hand Physics Controller FREE.
Hand Physics Controller
Make your own hand simulator game with this physics-based hand controller! Completely ready to use.
* Fully configurable
* Smooth controls and accurate interaction with objects
* Fully rigged left and right hand models (1055 verts, 1730 tris, 2048×2048 PBR textures)
* Works on any platform
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