WHAT YOUR PURCHASE COMES WITH: 9 premium EVA blocking boards (12.6" × 12.6" × 0.75"), 150 rust-resistant T-pins, a gray felt storage bag for the boards, and a cotton canvas pouch for your crochet & knitting accessories. INTERLOCKING & EXPANDABLE SET: Interlocking tiles create a stable 36" × 36" blocking surface or can be arranged in any shape to fit your project. Order 2 or more sets for sweaters, shawls, and large garment pieces. EASY TO USE & CARE: Made from durable extra-thick EVA foam, each board holds pins securely and stays firmly in place. The smooth, lightweight surface makes blocking simple and enjoyable every time.