Description - Our Cork Yoga block is comprised entirely of cork, which is a sustainable, eco-friendly resource. Cork yoga blocks offer more support than most foam blocks and are very solid and light weight. The surfaces of the yoga block are smooth, allowing for the natural texture of the cork to give you added stability and comfort during poses.Material - Our Cork Yoga Block is made from cork, which is harvested bark off of the cork tree. The bark of the tree grows back for over 200 years and can be stripped every 9 years, making this product a truly inexhaustible product.Size - 9" x 4.75" x 3"Weight - 1.3 Lbs.Recommended Uses - Cork Yoga Blocks are designed to be used as supports for all types of yoga poses.