This product is a full set of laptop cover screws specifically designed for Lenovo Thinkpad models T530, W530, T500, W500, T420s, T420, and T420i. Manufactured in China, these screws come with a manufacturer warranty of 3 months and are sold in a bag unit quantity. Compatible with the Thinkpad product line, this set of screws is a reliable replacement part for maintaining and repairing your laptop.