A rubber gorilla mask with a great likeness, for a fancy dress gorilla costume.
As it is made of a flexible rubber it is one size fits all and will fit over your head with ease. It will also lie flat when you are not using it, but then again maybe once you're using it you won't want to take it off ever because you just love being a gorilla THAT MUCH. It's fantastic realistic deranged gorilla appearance is guaranteed to scare the pants of the postman next time you open the door wearing your new mask.
Anyway, it does of course come with breathe holes and eye holes, for your comfort. And your survival come to think of it. The furriness at the back is absolutely not real fur.