3 different sizes: 1x7.7 Oz, 1x11.9 Oz, 1x15.8 Oz, can store a variety of content Pressure fitted lids keep contents dry and fresh inside Set of 3pcs and it can be nested together to save a space when necessary Special designed gauge windows allow you to view the inside contents clearly Made of high quality food grade materials, 3 years warranty at MELODY OLINA store