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Description: Traditionally rolags were created on hand cards, but tools evolved as time passed, and drum carders and blending boards were created. While all three of these tools have carding cloth in common, they each func¬tion rather differently when it comes to the creation of rolags. Each of these styles of rolag should achieve some loft in the spun yarn; however, they have varying levels of cohesion, uniformity, and density due to the way the carding cloth interreacts with itself and the fibres. This article looks at how the style of rolag makes a difference in overall loft.