Niamh explains why she likes to use two layers of fabric in the hoop, as it avoid puckering when doing the stitching and also allows for less 'peak through' when moving your embroidery threads from one section of the embroidery to another.
An embroidery hoop has two sections and the top one gets tightened with the help of a screw. The fabric needs to be taut like a drum and not at all floppy. For quilters this is quite different and they would use a different style of hoop.
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