The Stanley GS20DT Dual Temperature 4-Inch Glue Sticks are designed for use in standard hot melt, low temperature and dual temperature glue guns. Excellent for bonding heat-sensitive materials, as well as general applications, these standard diameter glue sticks in 4-inch length and are used by the Stanley GR25 and GR100 Glue Guns. Each pack includes 24 glue sticks.