These glue sticks are specifically adapted to heavier mounts, according to Bosch specifications. Moreover, they are longer than other brands, such as Dremel who only 10cm instead of 15cm Bosch. It is perfectly suited to the handy "pen" Wireless Glue gun Bosch 06032A2000 GluePen pen. I have not yet tested the differences between the two types of light and heavy sticks for collages. Comment to be continued ...