The Pro Roller x300 combines the refined look of fine luggage with the hardworking functionality of a mobile studio to deliver the ultimate in security and organization. It is designed for travel, with heavy duty premium wheels that can be removed (if desired), and are user replaceable with an Allen wrench if damaged or worn.Lowepro’s exclusive Lock & Go System combines oversized zippers that are connected by a retractable cable to an official 3-digit combination TSA lock, to provide security of valuable gear especially when baggage check in is required. The Pro Roller x300 also features Reserve Pack. Simply unzip the bottom of the roller and remove the interior to create an impromptu backpack for portability while on location. Also ideal if a last minute downsize to carry on luggage is required, such as with regional carriers. Zip the front panel closed on the roller assembly, then check it as baggage while the camera gear stays with you. A retractable TelePod handle features left and right hand operating buttons and a ¼"-20 threaded accessory mount, serving as a makeshift platform for lighting or shooting.The Pro Roller x300 provides the ultimate in convenience, flexibility and security for the truly mobile photographer.