HzdaDeve 2PK A1/A1 Mini Filament Sensor Base Replacement Hall Board Base Filament Hub Kit with Extra 4PK Screws for Bambu Lab 3D Printer

["The filament sensor base sits on top of the extruder unit and holds the filament sensor (Hall Board) on its side. It also serves as the mounting base for the filament hub on A1 series printers.","Notice: This Filament Sensor Base is only compatible with Bambu Lab A1/A1 Mini 3D printer.","Installation: Easy-to-follow instructions. Please power off the printer before installing.","Performance: Better filament detection for more accurate, consistent prints.","After Sale Service: Reach out anytime, and we’ll get back to you with a solution within 24 hours."]