Textile weaving businesses produce cloth by interlacing lengthwise yarns, known as warp, with crosswise yarns, known as weft. They may operate handlooms for small-scale or specialist production, or industrial looms for larger runs. The fabrics made can include plain, patterned, jacquard, knitted? No, not knitted. Woven products range from clothing and furnishing fabrics to canvas, webbing and materials for industrial or technical use. Yarns may be made from natural fibres such as cotton, wool, linen and silk, or from man-made fibres. Customers may commission fabric to a particular specification, including its fibre content, weight, width, weave structure, colour and pattern. Some weavers offer design development, sample lengths, short production runs or repeat manufacturing for garment makers, interior businesses and other manufacturers.