Knit BlockersAn innovation that makes blocking super quick and convenient, these handy blocking tools are available in monochrome version. Having more than one pin tip, our knit blockers make blocking wide width projects easier. Anchor holes in each blocker allow you to attach a string along the longer side. which can be pulled to maintain even tension. Made of durable plastic, with rust resistant pins, our knit blockers help you to expertly finish your projects.