The product is a pack of 10 replacement 3/8 UNF thread inserts specifically designed for use with Helicoil thread repair tools. Made by RS, a trusted brand in the industry, these inserts are manufactured in Australia. The manufacturer part number for these inserts is 244-8476. Ideal for repairing worn or damaged screw threads, this product is a must-have for anyone looking to maintain the integrity and functionality of their vehicles or machinery.