Enviro lids are a one piece stainless steel lid that turns your regular size mason jars into a travel mug with a glass straw. This is a great way to enjoy a smoothie on the run or to use as a Sippy cup. So many options, one Enviro Lid.
Stainless Steel- 100% Rust Free
No BPA's, no phthalates, no chemical leaching
Food grade silicone grommet
Use with hot or cold beverages