Pink Floyd Prism Needlepoint Flask by Smathers & BransonDetails Holds Roughly 6 Ounces of Liquid Susceptible to Metal Detectors and Annoying Doormen Rust proof Full grain Leather Trim Fits Perfectly in Your Jacket Pocket Benefits Take a few pulls of this flask, and you'll see the dark side of the moon in no time! Share the contents of this flask with Us. Not with Them. We wanted to work Atom Heart Mother into this description in some way, so this is it. This is all we could manage.