These are what we used before RISO came out with proprietary packaging and distribution of the flash bulbs.Like the RISO bulbs, these sometimes have a light oxidation on the base. Simply rub briskly on wood, paper, tinfoil? until you see a shiny spot. ~ voila! Good to go.
Excellent!* Gocco B6 Frame $4.95 Sturdy Re-usable Plastic - fits all gocco models *notched frame with acetate flap - does not include mesh.>
