150mm x150mm card with 155mm x 155mm Kraft FSC Recycled 85% envelope in biodegradable sleeve. NOTE: If you prefer to receive your cards 'naked' (without a biodegradable sleeve, just card and envelope) - please, let me know straight after placing your order in a message and I will amend the invoice, deducting £0.05 per card. If I don't receive a message from you, your cards will be sent in biodegradable sleeves as in the description. The card is blank inside. The colourful artwork is printed on high quality uncoated 300gsm FSC certified board made with recycled coffee cup fibre. There is some information about the artist, Yuri Vasnetsov, and backstory of the brand on the back. Reference code and barcode printed on the back. 'Each sale helps plant a tree' with Eden Reforestation Projects on the back of the card