diff --git a/src/ApaiIO/Operations/GetSimilars.php b/src/ApaiIO/Operations/GetSimilars.php
new file mode 100644
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+++ b/src/ApaiIO/Operations/GetSimilars.php
@@ -0,0 +1,47 @@
+opyright 2016 Jan Eichhorn <exeu65@googlemail.com>
+ *
+  * Licensed under the Apache License, Version 2.0 (the "License");
+   * you may not use this file except in compliance with the License.
+    * You may obtain a copy of the License at
+     *
+      * http://www.apache.org/licenses/LICENSE-2.0
+       *
+         * Unless required by applicable law or agreed to in writing, software
+	  * distributed under the License is distributed on an "AS IS" BASIS,
+	   * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+	    * See the License for the specific language governing permissions and
+	     * limitations under the License.
+	      */
+
+	      namespace ApaiIO\Operations;
+
+	      use ApaiIO\Operations\OperationInterface;
+
+	      class GetSimilars implements OperationInterface
+	      {
+	          private $operationParameter = array(
+		          'ResponseGroup' => 'Large',
+			          'SearchIndex' => 'Blended'
+				      );
+
+				          public function getName()
+					      {
+					              return "SimilarityLookup"; // Amazon operation name
+						          }
+
+							      public function setResponseGroup($responseGroup)
+							          {
+								          $this->operationParameter['ResponseGroup'] = $responseGroup;
+									      }
+
+									          public function getOperationParameter()
+										      {
+										              return $this->operationParameter;
+											          }
+
+												      public function setItemId($asin)
+												          {
+													          $this->operationParameter['ItemId'] = $asin;
+														      }
+														      }
+