This product is designed for use in hanging air and electrical lines. It features a sleeve for a tracker bar kit, available in 25", 20", or 16" sleeves, and is sold in quantities of 8 or 12. It fits most makes and models, making it a practical and versatile option for those in need of a reliable solution for hanging lines. With its durable construction and easy-to-use design, this product is a must-have for anyone looking to streamline their operations and improve efficiency.