This is a semi resin/plastic model kit. I liked it alot, and it went together very well, using a super glue of course.
I gave it a coat of Tamiya OD and a wash of AK dust. The only addition I made is a Tank Commanders sight blade near the hatch. These were a typical addition to Sherman's to aid the Tank Commander in training or slewing the turret as he looks along the sight blade an then knew the tank turret (gunners) sights would then be very close to the target.
A piece of sheet metal was welded/bolted in a semi triangular shape with a rounded top.