◾️ T-shaped silicone stoppers are suitable for powder coating, painting, anodizing, plating, and media blasting. They can be used as waterproof plugs, sealing plugs, pipe holes, test tube plugs, rubber bulkheads, caps, cylinder plug heads, and threaded rubber plugs. ◾️ High-temperature resistant silicone plugs. ◾️ Overall size: 9x9x7mm / 0.35x0.35x0.28" (Outer diameter x Total height x Height) Mounting hole diameter: 4mm / 0.16" ◾️ Material: Rubber ◾️ Color: Black; The package includes 30 silicone plugs. Made of silicone material, they have high elasticity, good insulation and sealing properties, high-temperature resistance, and resistance to acids and alkalis, without dissolving or expanding in acidic liquids. They snap-lock into the mounting hole with fingertip pressure. Due to manual measurement, there may be a size error of +/- 1-2mm. Also, there may be slight color deviations due to different batches. High-temperature resistant silicone plugs, mounting diameter 4mm / 0.16", T-shaped solid rubber stopper hole plugs, powder coating, plating, waterproof seal plugs, black, pack of 30 (outer diameter 9mm / 0.35") ♡ Unused, but opened for inspection. ♡ First come, first served for this single item. ♡ Please understand that this item is stored at home and will be shipped in simple packaging. ♡ Free shipping! ※ To offer the item at a lower price, it may be shipped without the box due to shipping costs. ♡ Anonymous shipping is possible (^^) → Items shipped via regular mail cannot be shipped anonymously, so please comment if you prefer anonymous shipping. ♡ Welcome to bundle purchases (^^) Feel free to comment! ♡ Purchase without comment: OK ♡ Immediate purchase / Silent purchase at midnight: OK #Yuppi'sProducts (11-47 1121)