The robot militia at Walmart is certainly getting bigger and stronger! As part of the expansion plan, the world’s largest retailer will soon be adding shelf-scanning robots to 650 more U.S. stores.

The move will bring the total number of such stores equipped with automated assistants to 1,000 by the summer, as reported by Business Insider.

Designed by Bossa Nova Robotics Inc., the six-foot-tall robots are capable of scanning items on shelves to help with availability, price accuracy as well as shelf location. Available at 350 Walmart stores at present, the robots make sure the store can function seamlessly and associates are there when customers need them.

John Crecelius, senior vice president of Central Operations for Walmart U.S. said earlier in April that these robots allow associates “to focus more on selling merchandise and serving customers”.