Sticky WooCommerce Header Cart adds sticky header with basic WooCommercec cart options. A row to top header will be added with a thumbnail, title, quantity and add to cart button. There is no need to add any code on your theme core file. Just install and activate it. Features: No need to put any code on theme files No need add_action or add_filter hooks Sticky WooCommerce Header Cart on single product details page as per your requirements.