A General Mills Foodservice merchandising sheet lists Pringles Grab/Go Original, 2.60 oz, with product dimensions of 4.90 inches high × 3.05 inches wide × 3.05 inches deep. Treat this as a documented retail-display example for that specific small SKU, not as the size of every Pringles can.
Package sizes and product labels can change. For another format, check the exact package or its current supplier specification. For a broader comparison of U.S. beverage and food containers, see can sizes and dimensions.