The Viking Digital Battery & System Tester 58759 is a single item designed to test AGM, Gel, and Lead-Acid batteries with a voltage of 12V. It features an LCD display for easy reading and is manufactured in China. This tester is a reliable tool for automotive use, helping to accurately diagnose the condition of batteries in vehicles. Though the product may be missing a bag, it still provides essential functions for maintaining and troubleshooting vehicle batteries.