Stopfen 1 is a versatile sealing plug designed to provide fast, reliable closure for holes and ports. It helps prevent dust, moisture and debris from entering enclosures and equipment, supporting longer service life. Made from a durable material, it withstands typical workshop and indoor environments and offers a secure, removable seal. Key benefits - Function: seals holes and openings quickly with a secure press fit - Compatibility: designed for standard openings; available in multiple sizes to fit common diameters - Size: range of diameters in the Stopfen line; check the product sheet for exact numbers - Material: durable, corrosion resistant material suitable for indoor and protected outdoor use - Performance: maintains a tight seal under normal temperature and humidity; resists deformation with repeated insertion - Installation: simple to install by hand; no tools required; removal is straightforward Use scenarios - In electronics or cabinet assembly, seal unused ports to keep interiors clean - For plumbing maintenance, temporarily plug drains or cleanouts to control flow - While storing or painting equipment, seal openings to prevent dust and splashes