Hobbii is a craft retailer offering yarn, knitting and crochet supplies, patterns, and accessories for makers of all skill levels. Its extensive yarn range includes acrylic, cotton, wool, merino, alpaca, bamboo, cashmere, silk, mohair, and blended fibers, alongside specialty options such as sock, chenille, organic, and color-changing yarns. Shoppers can also browse yarn packs, hanks, and assorted-fiber or sock-yarn bundles.

For knitting and crochet, Hobbii stocks crochet hooks, Tunisian crochet tools, knitting needles, and interchangeable circular needle sets, as well as yarn accessories, sewing supplies, and project essentials such as stitch stoppers and buttons. The site features free patterns for garments, accessories, home décor, toys, and baby items, helping customers find inspiration for projects ranging from sweaters and socks to blankets and amigurumi. Collections and collaborations with designers add further variety. Hobbii also offers bags, storage, and other craft-related products, with sale items and seasonal selections available. Overall, the brand brings materials, tools, and creative ideas together in one online destination for knitting and crochet.