Instruct: Classify a review as either positive or negative.
Query: Poor description of the product

i'm still a fan of science diet, but why doesn't petco include a description of these cans? i wanted the 2.9 oz cans and specifically did NOT want the 5.5 oz cans. yet nowhere in the product description does it say whether it's 2.9 or 5.5 oz. i guessed by the weight that it was 2.9 oz (the picture looks like the small can too), but it's 5.5 oz. i already paid shipping once, no way am i paying to ship it back. this mix up isn't the biggest deal in the world, just very annoying that such basic information is not included in the product description.