Amaco Potter's Choice Glazes, Classroom Packs, Classpacks, Amaco Potter's Choice glazes achieve the effects of Cone 10 reduction without the need for a reduction gas kiln or firing to high temperatures. These lead-free glazes are made to fire at Cone 5-6 in an oxidation kiln., Ceramic and Pottery Glazes,Ceramic and Pottery Glazes Classroom Packs,Ceramic Glaze Classroom Packs,Ceramics and Sculpture,Ceramics and Sculpture Classroom Packs,Classroom Packs,Customer Favorites Ceramic Glaze Classroom Packs,Customer Favorites Mid to High-Fire Glazes,Kids’ Art Supplies and More,Mid to High-Fire Glazes,Mid to High-Fire Glazes and Effects, Amaco Potter's Choice Glazes,Ancient Copper,128 oz (3.8 L),,,,,,,Liquid