diff --git a/src/Notion/Properties/MultiSelect.php b/src/Notion/Properties/MultiSelect.php
index a062876..11922dd 100644
--- a/src/Notion/Properties/MultiSelect.php
+++ b/src/Notion/Properties/MultiSelect.php
@@ -1,7 +1,24 @@
 <?php namespace Notion\Properties;
 
 use Notion\PropertyBase;
+use Illuminate\Support\Arr;
 
 class MultiSelect extends PropertyBase
 {
+
+    public function set($value): void
+    {
+        if (!isset($this->config->multi_select)) {
+            $this->config->multi_select = (object)[];
+        }
+
+        if (!is_array($value)) $value = [$value];
+        $this->config->multi_select = array_map(fn($el) => (object)['name' => (string)$el], $value);
+    }
+
+    public function getValue()
+    {
+        $withoutOptions = Arr::except((array)$this->config->multi_select, 'options');
+        return count($withoutOptions) ? (object)$withoutOptions : null;
+    }
 }
diff --git a/src/Notion/Properties/Number.php b/src/Notion/Properties/Number.php
index 6f0a1d9..b250d4f 100644
--- a/src/Notion/Properties/Number.php
+++ b/src/Notion/Properties/Number.php
@@ -4,4 +4,19 @@
 
 class Number extends PropertyBase
 {
+    public function value()
+    {
+        return $this->config->number;
+    }
+
+    public function set($value): void
+    {
+
+        $this->config->number = ($value === (int)$value) ? (int)$value : (float)$value;
+    }
+
+    public function getValue()
+    {
+        return $this->config->number;
+    }
 }