diff --git a/src/Api/Checkout/Sessions.php b/src/Api/Checkout/Sessions.php
index b429565..6bd2755 100644
--- a/src/Api/Checkout/Sessions.php
+++ b/src/Api/Checkout/Sessions.php
@@ -50,4 +50,16 @@ public function find(string $sessionId): ApiResponse
     {
         return $this->_get("checkout/sessions/{$sessionId}");
     }
+
+    /**
+     * Retrieves line items for an existing session.
+     *
+     * @param string $sessionId
+     *
+     * @return \Cartalyst\Stripe\HttpClient\Message\ApiResponse
+     */
+    public function lineItems(string $sessionId): ApiResponse
+    {
+        return $this->_get("checkout/sessions/{$sessionId}/line_items");
+    }
 }