1- Extract Zip file
2- copy (Sea Creature Limbs) folder
3- Paste at C:\Program Files\Pixologic\ZBrush ##\ZBrushes
4- Open Zbrush > lightbox > brush> Sea Creature Limbs
5- happy sculpting :)
For personal use and one commercial project (up to 2,000 sales or 20,000 views).
One copy to be used by a single user.
One installation by a single user.
For use on an unlimited number of commercial projects with no limits on sales or views.