41 Rock & Stones Brushes together with all alpha masks in 2048px resolution as PSD adn TIF format.
43 Rock & Stones Brushes Vol.2 together with all alpha masks in 2048px resolution as PSD adn TIF format.
Brushes was tested in Zbrush, Substance, Mudbox etc. and are availabale in three various licences, personal, indie and studio.
Vol.1: https://gumroad.com/l/vZSFr
Vol.2: https://gumroad.com/l/RKCVdT
All 84 Brushes in one pack: https://gumroad.com/l/BrMZ