Manufacturer Knitter's Pride Manufacturer part number KP800120 GTIN 499995187054 Availability Out of Stock - on backorder and will be dispatched once in stock. Knitter's Pride Aqua Sock Blockers-Medium MEDIUM -AQUA SOCK BLOCKERS $15.56 Qty: Add to cart Add to compare list View Knitter's Pride-Aqua Sock Blockers. Perfect tool for blocking wet socks! They dry to the sock shape and size. Very sturdy and flexible. This package contains two medium sock blockers measuring between shoe sizes 6 and 7.5 for males and measuring between shoe sizes 7.5 and 9 for females. Imported.