A nap riser is a detailer tool for needlework or knitting/crocheting. Tool slips around a few fingers and is used to brush the nap of napped fabrics add brushed interest to an area of needlework or smooth stray novelty yarn fibers. Also great to tame the nap of velvet and corduroy . It"s one of those tools that once you own it you wonder how you ever worked without it!