24 piece Number and Symbol Hot Stamps. 0 - 9, question mar, music note, exclamation mark, asterisk, ampersand/and symbol, pound sign, support ribbon, circle, square, star, arrow, heart, tilde, and apostrophe. Numbers are about 11/16 of an inch tall. Symbols range from 5/16 to 11/16 of an inch tall. Use with all Walnut Hollow Hot Tools. 8-32 threads