The Porper Card Clip (Black) Flat-Spine by Joe Porper (GV$9)
Comes with a $9 gift voucher on your next purchase :)
Made with industrial strength aircraft aluminum alloy that has been Black anodized to military specs, these clips are ready to protect your most versatile props -- your cards.
Just like the originals, they are designed to keep an even amount of pressure across your cards, and show-ready under the harshest conditions.
Be ready for magic - carry your cards in a Porper Card Clip.