Model 1 Stopfen is a stopper plug designed to seal openings quickly and reliably. It creates a tight, temporary seal to prevent leaks, dust, and contamination and can be removed when access is needed. The stopper is built from a durable material and supports repeated use. It fits a range of standard opening sizes and is available in multiple diameters to match common applications. Key benefits - Easy to insert and remove by hand - Provides a secure, leak resistant seal - Durable for repeated use - Available in multiple diameters for broad compatibility Specifications - Model: 1 Stopfen - Type: stopper plug - Material: durable material - Diameters: multiple options - Use: temporary sealing of openings in containers, vessels, tubes, and pipes Use scenarios 1) Seal a bottle, jar, or vessel during storage or transport to prevent spills 2) Plug a pipe or tubing opening during cleaning, testing, or maintenance 3) Temporarily seal a test vessel during leak checks or line flushing