Chunky 100% Superwash Merino Wool! Unique, circular design! Nalbinding is an ancient art that predates crochet, but still uses loops to create stitched items. Nalbinding is pretty simple - the only equipment used is a tapestry, yarn, or nalbinding needle and the maker's thumb. Because of the nature of the technique, items are generally done in the round completely - instead of concentric circles or rows, the work is one long spiral. Handwash recommended. I use shampoo and/or conditioner instead of laundry soap. Air dry flat.