Lock-a-Socket™ 1/4" Drive Metric 13-Slot Red Socket Rail (LAS14MR) by Mechanics Time Savers®. If you're looking for a reliable solution to complete your project, this 1st-grade product is right up your alley. Designed utilizing the finest materials, it delivers unmatched levels of durability and strength needed to provide long-lasting service life. Superior in functionality, it will help you make any job easier and faster.