For use in standard hot-melt, low-temperature and dual-temperature glue guns Excellent for bonding heat-sensitive materials, as well as general applications Used by GR20, GR25-2 and GR100 Glue Guns Diameter .45" glue sticks in 4" lengths Stanley GS20DT 24 Pack Dual Temperature 4" Glue Sticks. For use in standard hot-melt, low-temperature and dual-temperature glue guns. Excellent for bonding heat-sensitive materials, as well as general applications. Standard diameter .45" glue sticks in 4" lengths. Used by GR20, GR25-2 and GR100 Glue Guns. Length: 4",101.6mm. Glue Type: Dual temp. Quantity Per Package: 24 glue sticks.