All offered skins are handpicked so you can be assured that each is of the highest quality. These skins are from Mali. These skins are really clear in sound. I take these particular skins for special djembe builds. Probably there are two levels of thickness aviable (check the table above the product description): medium and thick. Also you can choose between to kinds of "colors". There normal colored skins such as brown, grey and so on and skins wich have pattern. Patterned skins can be white or brown in their main color.