diff --git a/src/Plugin/Field/FieldWidget/WeightSelectorWidget.php b/src/Plugin/Field/FieldWidget/WeightSelectorWidget.php
index e6fc285..9cc4363 100644
--- a/src/Plugin/Field/FieldWidget/WeightSelectorWidget.php
+++ b/src/Plugin/Field/FieldWidget/WeightSelectorWidget.php
@@ -33,24 +33,11 @@ class WeightSelectorWidget extends WidgetBase {
 
     $element += array(
       '#type' => 'select',
-      '#options' => $this->rangeOptions($range),
+      '#options' => \Drupal::service('weight.range_service')->rangeOptions($range),
       '#default_value' => $value,
     );
 
     return array('value' => $element);
   }
 
-  /**
-   * Get weight range options.
-   */
-  public function rangeOptions($range) {
-    $options = array();
-
-    for ($i = -$range; $i <= $range; $i++) {
-      $options[$i] = $i;
-    }
-
-    return $options;
-  }
-
 }
diff --git a/src/Plugin/views/field/WeightSelector.php b/src/Plugin/views/field/WeightSelector.php
index f632956..d656017 100644
--- a/src/Plugin/views/field/WeightSelector.php
+++ b/src/Plugin/views/field/WeightSelector.php
@@ -64,7 +64,7 @@ class WeightSelector extends FieldPluginBase {
       '#tree' => TRUE,
     ];
 
-    $options = WeightSelectorWidget::rangeOptions($this->options['range']);
+    $options = \Drupal::service('weight.range_service')->rangeOptions($this->options['range']);
 
     // At this point, the query has already been run,
     // so we can access the results.
diff --git a/src/WeightRangeService.php b/src/WeightRangeService.php
new file mode 100644
index 0000000..8377489
--- /dev/null
+++ b/src/WeightRangeService.php
@@ -0,0 +1,23 @@
+<?php
+
+namespace Drupal\weight;
+
+/**
+ * Class WeightRangeService.
+ */
+class WeightRangeService {
+
+  /**
+   * Get weight range options.
+   */
+  public function rangeOptions($range) {
+    $options = array();
+
+    for ($i = -$range; $i <= $range; $i++) {
+      $options[$i] = $i;
+    }
+
+    return $options;
+  }
+
+}
diff --git a/weight.services.yml b/weight.services.yml
new file mode 100644
index 0000000..03272c6
--- /dev/null
+++ b/weight.services.yml
@@ -0,0 +1,3 @@
+services:
+  weight.range_service:
+    class: Drupal\weight\WeightRangeService
+