Stanley GS500 6-Pack 4-Inch Formula II-Super Strength Glue Sticks Go to amazon.com Related posts Top 8 recommendation diameter tape stanley FeatureExtra strength adhesiveStandard diameter glue sticks in 4" lengthUsed by GR20, GR25, GR90 & GR100 Glue GunsLimited Lifetime Warranty DescriptionMakes fast permanent bonds. Glue, caulk, and set time 25 to 60 seconds. No shelf life limit like tube and bottle glues.