Using the KnitPro Rainbow Knit Blockers is easy. First, lay your crochet or knit piece flat on a blocking board. Place the blockers along the edges where you want to set the shape. For large sections, attach a string through the anchor holes and pull it to the desired tension, then pin it down. When it comes to different shapes, use the appropriate size of blocker from the kit. As for maintenance, keep the blockers in a dry place to prevent the stainless - steel pins from rusting. Avoid bending or breaking the pins during use. If they get dirty, you can gently wipe them with a clean cloth. Remember, although the brand has changed to KnitPro, the quality of these tools is still top - notch.