Glue gun sealing wax by Stamptitude.
They are made from flexible wax meaning they will not crumble or break in the post.
Each stick can be used to make approximately 10-11 seals (25-30mm).
Stick Measurements: 138 x 11mm (fits standard 1/2 inch glue gun)
Sold as individual sticks.
Please note that colours may vary between batches.