An4 Käsitööpood is an online shop for knitting, crochet, embroidery, and other craft projects. Its extensive selection brings together yarns from a range of well-known brands, with options suited to different materials and creative needs. Shoppers can browse alpaca, mohair, merino, wool, cotton, bamboo, linen, silk-blend, and sock yarns, as well as crochet threads and yarns for macramé and rug-making. The catalogue includes both solid and multicoloured varieties, alongside selected discounted and clearance items.

The shop also offers practical tools and supplies for working with yarn, including crochet hooks, knitting needles, interchangeable circular needle tips and cables, sock needles, and small craft accessories. Embroidery materials and yarn dyes are available too, complemented by craft books and gift cards. With products organised into detailed categories, An4 helps makers find materials and equipment for projects ranging from garments and accessories to decorative and home crafts. The site provides an online shopping basket, customer login, and contact option for shoppers.