This is for a set of 7 aluminum Presto Canning lids each with a Presto glass insert and a rubber seal. Please note the lid in the upper righthand side does have some corrosion and damage to it. The lids are Good Housekeeping approved as embossed on each lid. The rubber seals are aged so may need replacing. The glass inserts measure 2 5/8" diameter  and 2" diameter across flange. These will fit the regular size canning jar. Please message if you have questions and thanks for looking.