quantity field woocommerce

Hi

In my shop page I have added custom add to cart buttons and i need to find a way to have the quantity field next to it so users can choose how many they want. I havent used the themes product pages as I wasnt keen on the layout, so this is just a standard page..

Anyone know of a solution or any decent plugins that would work for this?

Thanks in advance

The page I need help with: [log in to see the link]