This is an acrylic reed case from Reeds'n Stuff, and it's very well-made. It's a latest model with a humidity control vent (open/close type, with a mechanism to let in outside air). (Older models are also available at a lower price. Please take a look at those as well.) I've hardly used it since I bought it, and I've never taken it out of the house. It's been carefully stored, so the condition is extremely good. The hygrometer gives accurate readings.