The Guitar Chord Card lets you find the chord you need by simply sliding two cards left and right. Flipping and rotating the cards selects between the 17 major, minor and seventh chords that make up most guitar music. These cards are the same size as standard credit cards, and can be carried in a wallet or left on a music stand.
Sorry about the extra S&H on Amazon. As an amazon individual seller, I am unable to change shipping prices. However, I still want to give you the option to buy from Amazon, because they are so darn convenient.