ORIGINAL CREATOR Innovative FlipFit Two-Sided Lid: One side fits a Regular Mouth Mason Jar (over the mouth), the other fits a Wide Mouth Mason Jar (inside the mouth). NOTE: Lid is not stretchable and is flippable

FLIPPABLE STOPPER PLUG: Each lid comes with a removable & flippable to other-side stopper plug

HIGH-QUALITY FOOD-SAFE SILICONE: Mason jar lids are made from filler-free LFGB (German standard) silicone

Prevent the lid pops out of a wide-mouth jar: when pushing down the lid remove the air by slightly lift the lid edge while pushing down on the lid

MICROWAVE, OVEN, FREEZER, DISHWASHER SAFE: Temperature range -40F to 425F

VEGAN, BPA-FREE, PVC-FREE, PHTHALATE-FREE, PLASTIC-FREE

PASS "PINCH TEST": If silicone turns white when pinched or stretched, it can indicate fillers. Compliant with FDA (USA), and LFGB (Germany) food safety standards

SILICONE IS NOT PLASTIC: NO BPA or their replacements, no microplastics or harmful chemicals

4 SILICONE MASON JAR LIDS WITH STRAW HOLE & REMOVABLE WAVE STOPPER PLUG