The product is a rare and unique NOS Sears Craftsman USA quality 36-blade feeler gauge, designed for precise measurements and gap analysis. Made in the USA, this tool comes with a Craftsman lifetime warranty, ensuring durability and reliability for automotive use. With a total of 36 blades included in the set, this gauge is a valuable addition to any mechanic or DIY enthusiast's toolbox, providing accurate results for intricate auto repairs and maintenance projects.