The product is a box of 8 Clevite 217-3812 valve guides. Clevite is a trusted brand known for producing high-quality engine parts, and this product is specifically designed for valve guides in engines. The manufacturer part number 217-3182 indicates that these valve guides are compatible with various engine models and are a reliable choice for maintaining optimal engine performance. Perfect for car enthusiasts looking to replace or upgrade their engine's valvetrain components, this product offers durability and precision engineering from a trusted brand like Clevite.