Part of a monthly series of 12 pins given by Hard Rock Cafe locations in Japan to customers celebrating their birthdays. Each pin is a drum set with a 3D birthstone gem at left center. Drum and gem colors vary by month.
Drums on April pin are white and blue. Gem is white or clear. Hard Rock Cafe logo with no location name is on bass drum at bottom center. At top of logo are the words "Happy Birthday" and at bottom is the month, all in gold capital letters. Year appears vertically in gold on right side of pin.
Base material: Gold appearance
Style: Painted
Back print: 4 lines
Back pattern: Hard Rock Cafe logos and Flying V guitars
Distribution method: Event giveaway
Release date: April 2007
Original retail price: None