Qty: PAIR(2pcs) Made from 4 mm plywood. Sanded front, back, and edges. Blockers are not varnished. What if your shoe size matches two different blockers? If the foot is narrow and low, choose a smaller blocker size. If the foot is narrow and high, choose bigger size of sock blocker. If the foot is wide, choose a larger size of sock blocker. Each sock blocker comes in three sizes (EU). For example, if you use S size sock blocker (35-37 EU), then you have to knit the socks like that: If you need the smallest size socks (35 EU), you need to knit a sock that will stretch tightly on the blocker. If you need a mid-size sock (36 EU), you need to knit a sock that is medium stretched on the blocker. If you need the largest size sock (37 EU), you need to knit a sock that will stretch slightly on the blocker. To make the right choice, you need to knit a control knitting sample and calculate its density. Follow the instructions and the size of the blockers (cm) in the photos.