Mobile open frame CPU stand with fullaccess to the PC tower features Clear airflow path; Antislip pads protect chassis; Durable steel construction Adjust the holder width using wing nuts at the base for toolless adjustment from 5.2 to 8.6in; Accommodates different case sizes/UPS backups Maximize desk space by moving desktop computer to the floor mobile cart; Lockable caster wheels; 46.3lb capacity Underdesk adjustable rolling caddy includes all hardware for hasslefree assembly