The True Utility CashStash+ is a small capsule for your key ring that holds an emergency bank note, so you are never completely without cash. The capsule is aircraft-grade aluminium, and a neoprene O-ring makes it waterproof, so the note comes out as dry as it went in. Inside, a discreet stainless steel CashClip holds one note of any denomination rolled around it. It is small and light enough to carry every day. Also makes a neat small gift.