With Polished Smooth Surface, It Works Well With High Efficiency Causing Low Noise. ^High Temperature Resistance, Able To Work At Temperature Range Of -20-200 Or So. ^Adopting Premium Bearing Steel Material, Strong Enough For Long Time Use. ^Wide Applications In Many Fields: Industrial Machinery, Cars, Boats, Household Appliances, Health Care System, Etc. ^With 10 Pieces In One Package, You Can Keep Them For Spare Money, Very Convenient In Our Daily Life.Our products are made with the highest quality materials and are designed to provide you with the best possible user experience. We strive to ship out all orders within three days of purchase, and the estimated delivery time is 8-15 days.When shopping, please pay attention to the size and dimensions of the product to ensure that it meets your needs. In the title and , we have provided detailed information about the product, including its features and specificationsWe want you to be completely satisfied with your purchase, so if you have any questions or concerns, please don't hesitate to contact us. We are here to help and will do our best to assist you.Thank you for choosing our product. We hope you enjoy it