The product is a set of 6 Swagelok stainless steel union fittings designed for 1/8" outer diameter tubes. These fittings are suitable for hydraulic, pneumatic, and plumbing systems, featuring a compression connection for secure installation. Made of high-quality stainless steel, this product ensures durability and reliability in various industrial applications. The Swagelok brand is known for its superior craftsmanship and reputation in the industry, making these fittings a dependable choice for professionals in the field.