Available in Two Sizes: Choose the 0.625" version for many farm, agricultural, and select truck wheels, or the 0.453"version for most ATV, UTV, trailer, and standard wheel valve holes. Premium Materials Matter: Manufactured with high-quality components and tight tolerances to deliver exceptional fit, durability, and long-term performance. Engineered EPDM Seal: Premium EPDM rubber grommet is formulated to withstand UV exposure, ozone, moisture, and temperature extremes for years of dependable sealing. Solid Brass Construction: Built with solid brass and nickel-plated brass components to maximize strength, corrosion resistance, and long-term stability. Designed for Confidence: Every QuikStem is engineered for a secure, dependable installation using professional-grade materials chosen for lasting reliability. You won't find a better product, we guarantee it!