This is a cork yoga block from Yogaworks. I'm hoping someone will use it, as I haven't used it at all since I bought it. It has been stored in a well-ventilated place away from direct sunlight after purchase. ◯ L size Approximately 22.5 x 15 x 10 cm 1050g I received this as a used item. It was only used at home. There is a chip on one of the corners. Other than that, there are no noticeable scratches. <For supporting poses that put weight on the body, use the hard cork material> Because it is made of 100% cork, the hardness and substantial weight provide excellent stability, and it helps to correct the skeletal structure, which cannot be overcome by simply increasing flexibility. The cork yoga block M, which is the same size as yoga block A, is a thin type that is also ideal for fine-tuning poses, and the cork yoga block L, which is the same size as yoga block B, has a substantial thickness that is also suitable for practicing balance poses where you put weight on your hands. The Yogaworks print logo is printed in brown in the center of the front. Please be careful when handling it as it is heavy. <Environmentally friendly natural material> Cork is made from the bark of the cork oak, which has a lifespan of about 200 years. After growing for about 9 years, the cork oak is harvested only for its bark without being cut down, and after harvesting, it regenerates and continues to grow on its own, making it an environmentally friendly natural material that values its connection with wildlife and plants. What is a yoga block?: It is an excellent prop (support tool) that supports the flexibility of poses and corrects the individuality of the skeletal structure. The goal is "upper emptiness and lower solidity," where the upper body is light and the lower body is stable. In poses where it is difficult to maintain balance and you cannot feel a pleasant stretch, using a yoga block to stabilize the foundation will eliminate the strain caused by unnatural postures and allow you to keep your upper body light. The key is to have a set of two, which expands the range of foundation building. Once you have grasped the feeling of the foundation, it's time to move away from the help of the block.