#woocommerce-product-data ul.wc-tabs .woo_packaging_materials_usage_tab > a::before {
    content: '\f312';
}

.woocommerce_options_panel .woo_packaging_materials_num_stock_to_remove_label input[type="number"].woo_packaging_materials_num_stock_to_remove {
    margin-left: 10px;
}