1.Stopfen is a sealing plug designed to close small openings quickly and reliably. It provides a simple, tool-free way to prevent leaks, dust, and drafts in a variety of applications. - Function: Seals small openings to block liquids, dust and air ingress; creates a secure, removable seal. - Compatibility: Fits standard openings found in equipment, enclosures and containers; check the product specifications for exact diameter. - Size: Intended for small openings; exact dimensions are listed in the product specifications. - Material: Flexible, durable construction suitable for repeated use. - Performance: Provides a reliable seal under typical indoor conditions and handling. Use scenarios - Close unused ports on electronic enclosures during maintenance or shipping - Seal tubing ends or sample ports in laboratories and workshops - Plug openings in hobby projects or prototypes to keep dust out during assembly