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11 Sizes Rubber Bungs for Holes: Covers 4.5mm-25mm (4.5/5/6/8/9/10/12/15/18/20/25mm). One kit fits all, from tiny electronics to large pipes. Perfect for DIY, auto, or home repairs. No guesswork, no extra kits needed Snap-Fit Design & Firm Locking: Tough silicone with reinforced snap-fit locks firmly—no drop-off. Reusable, clean and reinsert. Works as reliable rubber stoppers or rubber bungs. One kit replaces dozens of disposables, great for workshops and garages Easy Press Installation: No tools needed—just press into a clean hole and it snaps in. Easy-grip lip for quick removal and reuse. A practical alternative to plastic hole plugs and traditional rubber stopper replacements. Simple fingertip installation Reusable & Reliable: Premium silicone resists water, dust, corrosion and temperature changes. Won't crack, shrink or harden. Ideal as an air conditioner drain plug or rubber plugs for holes in wet environments. Long-lasting airtight seal Wide Application: Seals pipe ends, electrical boxes and furniture holes. Use as rubber grommets for holes, rubber grommets, rubber grommet inserts, or rubber bungs stoppers in labs, plumbing and DIY. One kit covers all sealing needs