Both the HTS and HTW wires can be used for any project that requires support in high temperature firings. Use the HTW, 17 gauge, special alloy wire for larger or heavier project support. The HTS is 24 gauge stamen wire perfect for supporting doll arms to tiny fingers, flower stems and other small or thin projects. Both wires can be fired to cone 5 and come in 10 ft. lengths per package. The HTS is also available on a spool of approximately 5,000 ft., while the HTW is available on spools of approximately 150 ft. and 5,000 ft.