Mason Jar Lids - Silicone w/Straw Hole

Dual use! These lids function as both a straw hole tumbler lid, and also as a fermentation lid! The 10.5mm hole will accept any straw up to 10mm, and is also the perfect size for plastic 3 piece fermentation airlocks! Attach with the included stainless steel band! Unlike normal Mason jar rings, this one will not rust with normal use and is dishwasher safe.

Made of 100% food grade silicone rubber and 18/8 304 grade stainless steel, these lid inserts are dishwasher, freezer, and microwave safe. Silicone is a safe, green, non-plastic (BPA free) material for food use that does not leach any chemicals. Fits regular mouth Mason jars - Ball, Kerr, and other standard canning jars.

Silicone jar sleeves, straws, and glass jars are not included. Comes with one silicone lid and one stainless steel band.