Includes 4 10 meter spools of the Holiday Green family. Trebizond silk perle is comparable to a size of Perle 5. Twisted from flat silk with a Z twist. High gloss supreme quality thread. On 18 count canvas it stitches perfectly using a tent stitch. While Trebizond is not commonly plied it can be separated into 3 strands for working on finer weight ground fabrics such as congress cloth or linen.