Protective thingies for bathing (Monks Hill CR2)

I’m sure these have a technical name, but I don’t know what it is! They are waterproof elasticated covers for protecting any part of you that might need to be kept dry whilst bathing. For instance, a shower cap - and there must be some other bits of you that need protecting if you’ve had an injury or have a dressing on. I haven’t opened this or looked at them closely, I don’t need them. Can you make use of them, or do I have to throw them away? Let me know if there are of any use.