Extra Strength High Temperature Glue Sticks (pack of 12 glue sticks, 5/16in. X 4in.) These are hot temperature glue sticks. 5/16 x 4 inches. 12 pieces per package. These hot temp glue sticks are formulated for extra strength bond that is instant and long lasting. For use in hot melt glue guns. Just heat what is needed and apply directly to craft projects with a glue gun, no mess! Bonds instantly. Thousands of craft and household uses. Works with all brands of hot melt glue guns that use round glue sticks. Also can be used with hot melt glue pots.