A handloom is a simple machine used for weaving. In vertical-shaft looms, the heddles are fixed in place in the shaft. The warp threads pass alternately through a heddle, and through a space between the heddles, and lowering the shaft lowers the same threads — the threads passing through the spaces between the heddles remain in place. Without knots, this weaving technique reduces processing times and costs, while maintaining the appearance of a traditional rug. The hand loom is used on wool, natural silk, botany silk and viscose.