Cork Bark is the bark peeled off from cork oak tree. Cork bark is divided into Virgin Cork Bark & Corkwood. Virgin cork bark is the first harvest of a cork tree. It has a deeply structured, rougher surface. Corkwood is the subsequent harvests of a cork tree. Its surface looks darker than virgin cork bark and its texture is smoother. You may distinguish them with the different surface texture from the attached pictures. At Leecork, Cork bark is sold by weight, 50kgs per bale. As a natural product, shapes and sizes of Cork Bark within any one shipment will vary. For more information about our products or our company, Please visit www.leecork.com, we look forward to your enquiry.