Review title is Plastic 1 oz. jars [SEP] The jars look as pictured. They are 2 inches in diameter and 1 & 3/4 inches in height. They are double-walled, sturdy but lightweight. Made of PP #5 plastic which is supposed to be better than other kinds of plastic but all plastic will leach chemicals. I had ordered 4 sets (10 per package) but one jar and lid were missing from one of the packages, otherwise I would have given it five stars.<br /><br />Edited 1/2/2014: The jars I had originally bought are NOT the jars shown here as of this date. The jars I bought were domed (lid and base), double-walled and the lids made a perfect seal with the bases (no space, no lid overlapping the base). They were nicer looking than these. Please see photo under "customer images of product" and my name "jamie".<br /><br />Edited 3/25/2014: Why does amazon continue to use my review for a product image that does not match what I actually bought?