Yarn Appearance Board Winder is used for wrapping the yarn in evenly spaced similar wraps on a board. The Board Winder is used for assessing the gaps between the wraps of reasonable yarn of dissimilar thickness. The Board Winder is mainly used to determine yarn irregularities like thick place, thin place, slubs, spliced yarn etc. The Yarn Appearance Board Winder is highly efficient to measure for better results.