Ivory was often cited as the best and most expensive material for carving '. Elephant ivory, especially of African origin, has been restricted or banned from sale, distribution, or commercialization in Mexico, the Philippines, the United States, and many other countries. While exact laws vary by jurisdiction (from total bans to legal sale of antiques only), ivory is now rarely used. While the most economical modern type of ' are made of resin or fiberglass, and mass-produced, traditional examples are still made primarily of wood, sometimes with metal accessories.