Perfect for beginners and experts, these Needlepoint, Knitting, and Crochet Blocking Boards are a simple and hassle free way to add a professional finish to your crafting projects. The blocking mats can be used for wet blocking or to dry projects, and can be used in individual 12'' x 12'' increments or combined to create a 24'' x 24'' surface. Includes (4) interlocking crochet, needlepoint, and knitting blocking boards.