An original Cuppow wide-mouth Mason jar drinking lid with Straw-Tek — the BPA-free plastic insert that turns any wide-mouth Mason jar into a travel mug or cocktail glass. Drink-through opening on top, straw hole on the side, fits standard wide-mouth band.
This is the conversion that lets households drop the bottled-water habit — fill a Mason jar with filtered water at home, pop the Cuppow lid, take it to work. Also the cocktail trick that turns a Ball jar into an Instagram-worthy serving glass with very little effort.
Cuppow makes Mason-jar accessories in the USA — BPA-free, dishwasher safe.
