When you click on the Order This Card button below the card preview, there will be a brief delay while your data's being processed; then you'll arrive at the Zazzle web site. It's Zazzle who will process your order, print it, and ship the cards to you.
Up to now you've just been viewing a web resolution preview of your card design. But the background images for the printed version have been created at 300 pixels to the inch, and I render the text at a resolution that's even slightly higher. So there's a huge difference in quality between the preview and the printed card.
The Zazzle product page lets you select the card stock you want for your business card. It starts out with 'Standard Semi-Gloss', an affordable choice that has the nice, white surface you want for these prints; but you have several other options, too. Just stay away from anything (like 'Premium Grey') that's much darker than white.
They also let you select rounded, rather than square, corners for the card. The rounded corners aren't a good choice for most of the designs I'm offering here. They'd be a bad idea, for example, if you use one of the Celtic border designs.
And - as is usually true with printed goods - the price goes down when you order in higher quantities.
So once you've picked your paper stock and set the quantity, you can order your cards.
Your order is completely out of my hands once you click the Order This Card button. I'm telling you that because, from time to time, there's a shipping problem and the customer contacts me. I'm sympathetic; I hate misdirected shipments as much as anybody. But being sympathetic is the limit of what I can do about it.
Orders are fulfilled by Zazzle, so if you have a problem with your order you'll need to contact them about it. Those are the people who can address any problems you have with an order. You should receive an email with customer service links when you buy your cards: use those links if you need to!