Showing data from product in page

Hi,

I am using a template that associates pages to products to show more details about the product. However the template used by this pages does not show some details such as stock units.

I can get the product id via:
$product=intval(get_post_meta($post->ID, '_course_product', true));

but something like:
echo $product->stock;

does not show anything…

Any help? ??

Thanks in advance.

https://www.ads-software.com/extend/plugins/woocommerce/