This Fenner Drives Clear 85 Twisted O-Ring Pack (50pcs) 1/4" x 13.25" is a reliable and efficient choice for industrial applications. The O-Rings are made from high-quality materials and designed to provide a perfect seal for your machinery. With a unit quantity of 50, this pack is ideal for large-scale industrial projects. The O-Rings are twisted for a better grip and compatibility with various types of machinery. The pack includes 5403375 model O-Rings, which are suitable for use in a variety of industries. Whether you're looking for a replacement or an upgrade, these Fenner Drives Clear O-Rings are a great choice.