WooCommerce How do i have different postage prices for each product?

Hey

On my website i am selling a variety of products, and alot of them need different postage costs. But how do i do this? On wordpress i selected Woocommerce>settings>shipping>local delivery, and then selected ‘Fixed amount per product’ as the fee type. But now what do i do?? Im in the UK and will only be posting to the UK. Thanks