The Vintage Corning Ware Black Twist Detachable Lock-on Pot/Casserole Handle is a 7" handle designed to attach to CorningWare and Corelle casserole dishes. Made of black glass with a non-stick surface coating, this original vintage item features a twist lock mechanism for easy attachment and detachment. A classic piece of decorative cookware, this handle adds a touch of retro charm to any kitchen collection. Estate find, used