An easy to intermediate pattern designed to be knit in White Gum Wool 5ply/sport weight yarn 286m/313yd per 100g ball. Key to Comfort uses 5-ply (WGW silk/merino) weight yarn and requires 3 balls (34in / 85cm), 4 balls (36-44in / 95-111cm), 5 balls (45-48in/ 113-122cm, 6 balls (52-55in / 1131-140cm) or 7 balls (59-63in / 149-159cm). The pattern uses 4mm x 100cm and 5mm x 100cm circular needles. Designer: Dandilion Girl (United States)