Every see one of these? The best gadget invented. A knob cover for the Crock Pot! Uses just minimal amount of yarn to make a rounded type cover that fits over knob, to guard against heat. These work very well, and you wont have to bother with a clumsy potholder for the small knob top. Knit these up by the dozens , by the day. Uses worsted weight yarns, knitting needles, US # 5.