Premium Black Automotive Hole Plugs – Custom ODM Rubber Stopper & Silicone Seal
High-grade silicone material ensures superior flexibility, heat resistance (-40°C to 230°C), and waterproof sealing for long-term durability. Precision-molded design provides airtight protection against dust, moisture, and noise, ideal for automotive holes, machinery gaps, or bottle cap replacements. Customizable sizes and shapes (ODM/OEM supported) to fit diverse industrial, DIY, or household applications—perfect for bulk buyers seeking cost-effective solutions. Smooth matte finish with reinforced edges resists wear, maintaining a sleek, professional appearance in any setting. Non-toxic, odorless, and UV-resistant for safe indoor/outdoor use in automotive, plumbing, electronics, or packaging industries. Global wholesale pricing with direct factory supply—minimize costs without compromising quality for large-volume orders.