Using these Katrinkles adjustable sock blockers is easy. First, shape your freshly knitted or washed sock as you want it to dry. Then, gently insert the blockers into the sock, adjusting them to the right size so the sock holds its shape. When you're done, remove the blockers and store them in a dry place. Avoid leaving them in direct sunlight for long periods as it may damage the hardwood. To clean, just use a soft, dry cloth. With proper care, these blockers will serve you well for many sock - making projects.