Bag of Golding

This small pouch appears to be nothing more than a beautifully decorated bag, but within is an extra-dimensional space that can hold 5 square feet of currency. There are four large beads threaded through the string on the front of the bag that are colored copper, silver, gold and platinum. Sliding these beads to the right causes all currency placed into the bag or withdrawn from the bag to be of the designated currency type. The pouch can open to a maximum of 12 inches and any non-living, non-magical item that passes through the threshold of the bag is instantly converted to its value of the selected currency. If this bag is placed within another extra-dimensional space, the pouch is destroyed and all of its contents explode violently up to 300 feet in all directions in the form of coins of all varieties.