The Fisnar neoprene plug is specifically designed for cartridges with a volume of 80cc, 55cc, and 30cc. These plugs are made from high-quality neoprene and ensure efficient sealing as well as excellent durability. The packaging unit is 20 pieces, which simplifies purchasing and storage for technical operations. Ideal for applications where a reliable seal is required, these plugs provide a long-lasting and effective solution to prevent leaks and other common issues associated with the use of liquid cartridges.