Spend only $15 more for free shipping, no sales tax in most states.    * 12 Piece set with 4 Locking Tabs for Secure Storage    * Molded Gasket for Improved, Air-Tight Seal    * Polypropylene Easy Find Lids Base    * Lids Secure to other lids and containers for Easy Storage    * Lock-Its set includes: two 1-1/4 cups; one 2 cups; one 3 cups; one 5 cups and one 7 cups.TTD Save More Hint.. Reuse your old glass jars as storage containers. They are free and glass is safer to store food. Use Sharpie to write what the item is on the jar.