There are five different fibres that make up the Rainbow Gallery Backgrounds range. Only two require any special consideration. BG01 is a Noppee silk and should be stitched using shorter than normal lengths, 12in or so. It will fray rather easily, so come straight up and straight down through the canvas. It will also help to use a needle that is slightly larger than you would normally use. Do not drag the silk across the canvas, as this will tear it apart. Its nice shine and glorious texture will make the extra effort worthwhile.