České korálky is an online shop operated by Rangl Lukáš, serving jewellery makers, beading enthusiasts and creative hobbyists. Its extensive catalogue brings together beads, jewellery-making components and craft supplies for projects ranging from simple bracelets to decorative and occasion-wear pieces. Shoppers can browse Preciosa, Miyuki, TOHO and MATUBO seed beads, alongside pressed and faceted beads, pearls, mineral beads, glass, wooden, resin and other varieties. The selection also includes Swarovski Elements, pendants, cabochons, settings, jewellery stones and beads in numerous shapes and materials.

For assembling and finishing designs, the shop offers clasps, earring findings, chains, connecting rings, wires, cords and other stringing materials. Components are available in standard options as well as sterling silver and surgical steel. Beyond beading, Česk é korálky supplies creative materials such as polymer modelling clay, resin, paints, decorative accessories, felting supplies and materials for bags, seasonal ornaments and other handmade projects. The website also features jewellery, hobby sets, specialist literature, tutorials and a loyalty programme, making it a broad resource for both inspiration and project supplies.