1.This cotton fiber wickle works best with paraffin and kerosene oil based lanterns 2.Provides a beautiful ambience for porch lighting camping and warm summer nights or just cozying up to a book in your family room. 3.This is a household necessity for emergency Lighting or power outages. 4.Can also supply a reasonable source of heat dependent upon the lantern. 5.Trim the wick to your desired length. Material: Cotton Diameter 1/4 in（6mm）5/16 in（8mm）3/8 in（10mm） Long: 3 meters Package includes： 3m x Oil Lamp Wicks