Mecha is a single spunsuperwash chunky pure merino wool..Malabrigo Superwash Merino takes colour in the most vivid, rich way, and nowhere is that more apparent than in the multi-layered hues of Mecha. Soft as always, Mecha has a fantastic loft and is the perfect size for quick but not to heavy projects..Size 6mm to 8mm needle or hook recommended..