Modernize Your Workspace with the Sleek Electric Desk Board(Top Only) Color:Walnut This 500 piece puzzle is This 500 piece puzzle is a great puzzle for any child who has mastered 200 or 300 piece puzzles and is ready to challenge themselves Safety features of this four step ladder include non slip steps with rubber surfaces and dual handrails Installing the wide and spacious desktop to the frame is totally hassle free as the desktop is designed with factory aligned holes that match the sit stand desk frame (available separately in store) perfectly the 25mm thick tabletop is given a non toxic and eco friendly matt finish that is scratch proof and easy to clean