bag of winds

This bag has an interior space considerably larger than its outside dimensions, roughly 2 feet in diameter at the mouth and 4 feet deep. 

inside of the bag only wind exists. any attempt to place anything else inside will be thwarted. the winds inside of the bag can be used to a limitless degree, somehow always replenishing. the winds inside have a wide range of strengths but it must be spoken to determine how strong the winds will be. 

Notes: Utility, Container