Wax calk is advisable for woolens for all other fabrics use stone chalk or chalk marking pencils.

蜡制画粉适用于羊毛织物，其他面料可用石制画粉或画粉笔。

youdao

You can see from this picture of the 1903 World Series that there are no outfield fences, although there was likely a chalk line or a rope marking how close spectators could come to the field.

FORBES: Connect