Thank you for viewing this item. Product Name: HB03 Blade Fixing Screw for Ultrasonic Cutter, 1 piece, Echo Tech Co., Ltd. I have kept this at home for a while, but I haven't had the opportunity to use it, so I'm putting it up for sale. The outer bag has been opened for photography, but the item is unused. Please refer to the photos for the applicable models. It will be packaged with bubble wrap and sent via Yu-Packet Post. If you have any questions, please feel free to comment. Immediate purchase without comment is also welcome. Thank you for your consideration! #EchoTech