GreenPaxx Cool CapTM Universal Cup Lids, 2-pack, in Sealed Blue
Seal almost any cup with the first ever reusable SEALED COOL CAP! Conveniently covers a wide range of glasses when soaking nuts and seeds overnight. Fits glasses/ramekins from 2.75-3.75 inches.  Cover kids snack cups fast when rushing out the door.  Seal small portions in ceramic ramekins. Alternative to plastic wrap and foil.