ACEIRMC 2pcs Filament Connector, 3D Printer Filament Connector 1.75mm Filament Sensor for All Kind 1.75mm Filament DIY Multicolor Filament 3D Printer Red

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All-metal 3d printer filament connector using all-metal materials, high quality and durable, innovative design, easy to use.
3d printer filament often lose water and become brittle when exposed to the air for a long time. To prevent the filament from becoming brittle, please keep it sealed.
If the filament is disconnected during printing, or there is excess material after printing, which is not enough to print a model,it can be connected to continue printing. And multi-level models can be printed in different colors with the same filament attached.
2pcs Filament Connector, 3D Printer Filament Connector 1.75mm Filament Sensor for All Kind 1.75mm Filament DIY Multicolor Filament 3D Printer Red