Glue sticks are compatible with standard hot-melt, low-temperature and dual-temperature glue guns, providing versatile bonding performance for a variety of projects. Excellent for dual- and low-temperature glue guns, when applying to heat-sensitive materials. Standard 4-inch glue sticks. Designed specifically for use in Stanley GlueShot Hot Melt Glue Guns (GR20) and Stanley Dual Melt Glue Guns (BOS25-2) sold separately.