How to customize product at cart page

use this function and edit cart page template

/**
 * Display engraving text in the cart.
 *
 * @param array $item_data
 * @param array $cart_item
 *
 * @return array
 */
function iconic_display_engraving_text_cart( $item_data, $cart_item ) {
    if ( empty( $cart_item['iconic-engraving'] ) ) {
        return $item_data;
    }

    $item_data[] = array(
        'key'     => __( 'Engraving', 'iconic' ),
        'value'   => wc_clean( $cart_item['iconic-engraving'] ),
        'display' => '',
    );

    return $item_data;
}

add_filter( 'woocommerce_get_item_data', 'iconic_display_engraving_text_cart', 10, 2 );