Hollow Rubber Hole Caps — Silicone Rubber, Black, Temperature: 40 to +250 Key benefits Provides a simple, reliable seal for holes and openings to keep out dust, moisture, and debris. Flexible silicone construction cushions and protects exposed edges and components from wear and vibration. Wide temperature tolerance ensures consistent performance in both cold and heat environments. What this product does Functional purpose: covers and seals circular or irregular openings, protecting internal parts and maintaining a cleaner, safer assembly. Design: hollow cap shape allows it to fit over studs, tubes, wires, or small protrusions, while retaining elasticity for repeated removal and reinstallation. Appearance: black color blends with most equipment and offers a professional finish. Material and performance Material: silicone rubber — durable, flexible, and longlasting under repeated use. Temperature: 40 to +250 — suitable for applications that require resistance to extreme cold and temperatures. Color: black — neutral and unobtrusive for industrial or consumer products. Compatibility and use notes Works with a wide range of hole diameters where a hollow cap can slip over the opening or protrusion; elasticity allows a secure fit on uneven surfaces. No modelspecific limitations included; select a cap size appropriate for the hole or component you need to cover. Practical applications Automotive: protect exposed bolt heads, wiring passthroughs, or sensor housings from dirt and heat in engine compartments. Electronics and enclosures: seal cable entry points or unused ports to prevent dust ingress and improve appearance. Industrial equipment and machinery: cover fasteners, tubes, or fittings to reduce vibration wear and prevent contamination. Why choose this item Straightforward protective solution using proven silicone material. Performs across a broad temperature range and maintains flexibility for installation and removal. Neutral black finish and hollow design make it a practical, lowcost part for many maintenance and assembly needs. Installation tip Ensure the cap diameter matches the opening or protrusion for a snug fit; the hollow design permits easy presson installation and removal.