Unlike a bulky bottle opener, this Ace of Spades card bottle opener is ultra-thin and easy to stash in a pocket or drawer. It's made of strong stainless steel that's resistant to corrosion, rust, and oxidation. Reviewers have given them an impressive overall score of 4.8 stars, with one complimenting their "Nice heavy feel." A total of 10 playing card openers arrive per purchase, five of which have a black design and five that have a silver design.