WooCommerce - Show shipping class on product pages

<?php
  // WooCommerce - Show shipping class on product pages
  // code goes in functions.php for your child theme above add-to-cart button
  add_action( 'woocommerce_single_product_summary', 'show_shipping', 35 );
  function show_shipping() {
    global $product;
    $class_id = $product->get_shipping_class_id();
    if ($class_id) {
      $term = get_term_by( 'id', $class_id, 'product_shipping_class' );
      echo '<p class="shipping_class">Shipping class: '.$term->name.'</p>';
    }
  }