This stainless steel sensor flap and spring Replace Part is specially designed as a direct replacement for the extruder of Anycubic Kobra S1 and Kobra S1C 3D printers. Ensures stable filament detection and consistent extrusion performance. Made from durable stainless steel, the sensor flap offers excellent wear resistance, corrosion resistance and long service life. It maintains its shape and sensitivity even under long-term, high-frequency printing conditions. The parts are designed to match the original extruder sensor structure of the Kobra S1 / S1C. Simply remove the worn flap and spring and install the ones in the same position, no special tools required. Suitable for users who frequently change filaments, run long-time prints or need to maintain high reliability in production environments. A practical upgrade and maintenance solution for Anycubic Kobra S1 / S1C 3D printers. Color: Silver Material: Stainless Steel Specification: 5 pieces Package Contents: 5 * Sensor Flap And Spring Replace Part Only the above package content, other products are not included. Note: Light reflection and different displays may cause the color of the item in the picture a little different from the real thing. The measurement allowed error is +/- 1-3cm.