Lot of 7 Crochet Vintage Potholder Hot Pad Doily Retro Kitchen Kitsch Grandmacore decor Crocheted by hand These all seem to be made of acrylic yarn, except for the green and white piece and the purple piece as those appear to be made of cotton thread. The purple piece is thin like a doily, and the rest are thicker and could be used as hot pads. See photos for condition and measurements.