Night Owl Paper Goods Black Cat Real Wood Birthday Card Single, flat wood card with coordinating color envelope, packaged together in a clear sleeve Card made from sustainably-harvested real birch wood veneer Wood veneer is thin enough to not require extra postage, yet flexible and durable enough so that it can be mailed safely (approx. 1/32") Handwrite your sentiment on the back with ease, using a colored pencil, ballpoint pen or gel pen Made in the USA and 100% biodegradable and recyclable with paper goods