add_filter('wcfmmp_shipping_processing_times', function($processing_times) {
    $processing_times = array(
        '' => __('Ready to ship in...', 'wc-multivendor-marketplace'),
        '1' => __('1 business day', 'wc-multivendor-marketplace'),
        '2' => __('1-2 business days', 'wc-multivendor-marketplace'),
        '3' => __('1-3 business days', 'wc-multivendor-marketplace'),
        '4' => __('3-5 business days', 'wc-multivendor-marketplace'),
        '5' => __('1-2 weeks', 'wc-multivendor-marketplace'),
        '6' => __('2-3 weeks', 'wc-multivendor-marketplace'),
        '7' => __('3-4 weeks', 'wc-multivendor-marketplace'),
        '8' => __('4-6 weeks', 'wc-multivendor-marketplace'),
        '9' => __('6-8 weeks', 'wc-multivendor-marketplace'),
    );

    return $processing_times;
});