12 QRP Mason Jar Drinking / Fermentation Lid Cap Food Grade w/installed Grommets, Seals & Stoppers (6 REGULAR MOUTH & 6 WIDE MOUTH) SUPER FAST SHIPPER EVEN SHIPPING ORDERS RECEIVED BY 7 PM CST ON SATURDAY! (unless handling time is set for more than 1 business day) All parts are BPA-free Food Grade; 6 REGULAR MOUTH and 6 WIDE MOUTH Mason Jar Plastic Caps with 12 Grommets installed, 12 Silicone Seals, and 12 Rubber Stoppers; JARS, AIRLOCK, AND DRINKING STRAW NOT INCLUDED QUALITY RELIABLE PRODUCTS REUSABLE SILICONE SEALS are the best seals for any brand Mason jar plastic caps on the market guaranteed! They are designed wide enough that they don't fall out while screwing the plastic lid onto the jar and provide an airtight fit. And they are thick enough that they don't wrinkle while tightening. Easy removal for easy clean; clear silicone aids in cleaning inspection. The QRP Grommet is installed to side of Lid to leave space for labeling and for ease of use for straw as drinking lid. The QRP Stopper provides a "quick close" for storage when the fermentation process has ended as opposed to removing the lid and replacing with another cap, which allows too much oxygen into the jar. BONUS: A FREE GIFT of an "Our Daily Bread" Christian daily devotional is included with each order. If you aren't interested in receiving the booklet, simply send a message when placing your order and request that we withhold the gift. Thanks for your consideration!