diff --git a/README.md b/README.md
index f59f784..37f70a5 100644
--- a/README.md
+++ b/README.md
@@ -2,21 +2,24 @@
 Example component for OXID eShop 6.2 Services
 
 ### Install as package
-`composer require michaelkeiluweit/random-integer-number`
+`composer require michaelkeiluweit/random-number`
 
 ### Example usage
 ```php
 <?php
 
 use OxidEsales\EshopCommunity\Internal\Container\ContainerFactory;
-use MichaelKeiluweit\RandomIntegerNumber\RandomIntegerNumberInterface;
+use MichaelKeiluweit\RandomNumber\RandomNumberInterface;
 
 require_once 'bootstrap.php';
 
 /** @var RandomIntegerNumberInterface $randomIntegerNumber */
-$randomIntegerNumber = ContainerFactory::getInstance()->getContainer()->get(RandomIntegerNumberInterface::class);
+$randomNumber = ContainerFactory::getInstance()->getContainer()->get(RandomNumberInterface::class);
 
-echo 'random_number: ' . $randomIntegerNumber->shuffle();
+$number = $randomNumber->shuffle();
+echo 'random_number: ' . $number;
+echo PHP_EOL;
+echo 'type: ' . gettype($number);
 echo PHP_EOL;
 
 ```
diff --git a/composer.json b/composer.json
index d7ee625..c4b6c23 100644
--- a/composer.json
+++ b/composer.json
@@ -1,5 +1,5 @@
 {
-  "name": "michaelkeiluweit/random-integer-number",
+  "name": "michaelkeiluweit/random-number",
   "type": "oxideshop-component",
   "require": {
     "php": ">=7.4",
@@ -7,7 +7,7 @@
   },
   "autoload": {
     "psr-4": {
-      "MichaelKeiluweit\\RandomIntegerNumber\\": "src/"
+      "MichaelKeiluweit\\RandomNumber\\": "src/"
     }
   },
   "extra": {
diff --git a/services.yaml b/services.yaml
index e4889ed..471ae44 100644
--- a/services.yaml
+++ b/services.yaml
@@ -1,5 +1,5 @@
 services:
-  MichaelKeiluweit\RandomIntegerNumber\RandomIntegerNumberInterface:
-    class: MichaelKeiluweit\RandomIntegerNumber\RandomIntegerNumber
+  MichaelKeiluweit\RandomNumber\RandomNumberInterface:
+    class: MichaelKeiluweit\RandomNumber\RandomIntegerNumber
     autowire: true
     public: true
diff --git a/src/RandomIntegerNumber.php b/src/RandomIntegerNumber.php
index 805ccc0..a0d5828 100644
--- a/src/RandomIntegerNumber.php
+++ b/src/RandomIntegerNumber.php
@@ -1,12 +1,12 @@
 <?php
 
 
-namespace MichaelKeiluweit\RandomIntegerNumber;
+namespace MichaelKeiluweit\RandomNumber;
 
 
-class RandomIntegerNumber implements RandomIntegerNumberInterface
+class RandomIntegerNumber implements RandomNumberInterface
 {
-    public function shuffle(): int
+    public function shuffle()
     {
         return rand(0, PHP_INT_MAX);
     }
diff --git a/src/RandomIntegerNumberInterface.php b/src/RandomIntegerNumberInterface.php
deleted file mode 100644
index da047d1..0000000
--- a/src/RandomIntegerNumberInterface.php
+++ /dev/null
@@ -1,10 +0,0 @@
-<?php
-
-
-namespace MichaelKeiluweit\RandomIntegerNumber;
-
-
-interface RandomIntegerNumberInterface
-{
-    public function shuffle(): int;
-}
diff --git a/src/RandomNumberInterface.php b/src/RandomNumberInterface.php
new file mode 100644
index 0000000..f1beff0
--- /dev/null
+++ b/src/RandomNumberInterface.php
@@ -0,0 +1,14 @@
+<?php
+
+
+namespace MichaelKeiluweit\RandomNumber;
+
+
+interface RandomNumberInterface
+{
+    /**
+     * Return a number. Integer or float.
+     * @return int|float
+     */
+    public function shuffle();
+}