Description Featuring high-performance rubber gaskets and seals, these commercial truck seals are meticulously engineered for semi truck accessories interior, fitting brake connection seals on air hoses for semi trucks. Their robust rubber washer seals design ensures lasting airtightness, improving driving safety for your trailer brake seals and truck repair seals. Features -Color:Black -Material:Rubber -Size:4.10X4.10X0.90cm/1.61X1.61X0.35in -Enhanced air brake connection: specially engineered rubber seal gasket ensures tight seal for semi truck accessories interior, preventing air leakage and improving brake efficiency -Durable material for longevity: our rubber gaskets and seals are made from highperformance rubber, resistant to wear and aging, ideal for use in commercial truck seals over extended periods -Universal fit for trailers: the elastic grommets for semi trucks fit multiple trailer air hose seals and brake connection seals, making it a versatile accessory for daily truck repair seals -Excellent resistance properties: these rubber grommets seals offer elasticity and toughness, resisting oil, chemicals, and water, for harsh conditions found in tractors accessories -Reliable maintenance solution: gladhand seals and air brake seals within this kit support air hose for semi truck maintenance, streamlining routine trailer brake seals replacementPackage list: 20 x Trailer Wheel Spindle Washer