Flat round piece of goatskin with hair. Thickness: Medium- approximately 0.015 of an inch. This equates to the approximate thickness of 4-5 sheets of printer paper.All skins sold AS IS . We do our best to eliminate skins that have possible defects; however our prices are based on an as is basis. This means on average you can expect to lose one out of ten skins. Obviously the tightness during installation will alter this ratio so figure this loss in your cost.