These waxes are the perfect size for use in a glue gun! Easier to use than traditional sealing wax––no flame required. For best melting results, use a low-temp glue gun that takes full-size glue sticks. The wax seal will be strong, flexible, and non-cracking. Sticks are 3.75" long (7/16" in diamter) and make about 14-20 impressions.