This is a package of 5 small Dry Mud Stone for online and oflline engine, they are closed mesh and scale it to the real size . there is 5 .zip file here for you the same file you will get from Megascan and each zip file contain : 1 high poly mesh fbx file for offline engine, 1 source stl zbrush file, 4 lod fbx file for online engine + 4 normal map for each level of details. all the textures are 4k (Albedo,Normal,Roughness,Bump,NormalBump,Height and exr Displacement,Cavity,AO)