The Mainstay Wax Melts in Vanilla scent are part of the "12 Days of Christmas" collection, with each wax melt weighing 2.5 oz. Made of white wax, these solid melts are designed for use in a device. The pack includes 6 melts and is perfect for Christmas-themed home fragrance in any room. These wax melts are manufactured in the United States by Mainstays in 2024.