The principal objective of winding is to assemble many meters of yarn into package form suitable for use in subsequent operations such as weaving and knitting. A suitable package is one that can be easily unwound at high speed. Faults like very thick and very thin places in the yarn length should be removed, but the number of joint ends (i.e., piecings) must be kept to a minimum and, when required, a lubricant (wax) should be applied to the yarn surface. The yarn on packages for high-speed weft knitting is usually waxed. The removal of faults from the yarn is known as clearing and, in practice, clearing and waxing are important aspects of winding.