'happy birthday' Everyone loves a happy bearthday greeting! Single flat wood card with envelope Made in the USA from sustainably-harvested birch wood Blank back. Write with ease using color pencils, ballpoint or gel pen. 100% biodegradable and recyclable with paper goods Packaged in a clear sleeve A2 - 4 1/4" x 5 1/2" Unlike paper cards, no two wood cards are exactly alike. Variations in the wood grain make every card truly unique!