If you are having any trouble checking out then please follow these instructions:
1) On this page you need to pick your pen material (and any other options you would like).
2) Click add to cart, you'll see that it has been added to your basket at the top right of your screen. Repeat process if you would like more than one pen.
3) Click on the cart.
4) Click "Checkout", fill out your details and select free shipping. The price of your pen will be taken from the total automatically at the end, and you will only be charged for any add-ons you have not already paid for.