?ABOUT US? We are a model head manufacturer. This will be the great choice if you are looking for a durable and professional head. If you are not satisfied with the product, please contact us, we will provide you with a satisfactory solution. ?SIZE? Head circumference size 21inch 22 inch 23 inch 24 inch. Please allow 0.1--0.3 inch size tolerance. ?ADVANTAGE?Compared with poly filled canvas head, cork canvas block head is more sturdy and upscale. you could reuse it many times. ?FEATURES? The 22 in wig head is designed for hair experts or salon, it could make wigs easier to make, display and style. ?MATERIAL? The canvas block head is made of 100% high quality cork. canvas cover outside (Color Will Not Fade), cork Inside. Any questions contact us first.