This Gulches adjustable rolling desk features a powerful gas spring system allowing height adjustment from 28.5 to 42.5 inches in seconds to switch between sitting and standing positions easily. Constructed with thickened durable steel frames it ensures superior stability and safety. Equipped with four 360 degree rotation silent casters two of which are lockable it offers smooth mobility on various surfaces including carpets. The single column collapsible design saves space while providing ample legroom and can be slid under sofas or beds. All tools and accessories are included with detai instructions and video guidance for assembly within 10 minutes and professional customer service is available to solve problems within 24 hours