I am selling this item as I no longer need it. The exterior has overall discoloration and yellowing. The front two casters can be locked. There are retractable support legs on the bottom center, left and right. Please check images 4 and 5. Also, since it's old, I disassembled the shredder body, cleaned it, and applied grease. The exterior body was also cleaned. I have confirmed its operation. I've also included images from the disassembly. It's well-built and can shred CDs and credit cards, but I've never actually used it as I haven't had the opportunity. There is no original box or instruction manual, only the main unit. You can easily find the manual by searching "Asmix SC852CD" online. Please make your judgment based on the images.