Description: 【Wide Compatibility】: Designed for (K1/K1 C/K1 MAX) and -3 V3 Plus 3D printers, ensuring seamless integration and reliable filament detection 【Material】: Constructed from quality PP material, this filament sensor offers durability and long time performance for continuous 3D printing tasks 【Compact Size】: Features a compact design with dimensions of 3*5cm, making it easy to install without taking up extra space on your printer 【Complete Kit】: Includes everything you need for installation: 1 detector, 1 connecting cable, 4 screws, and 4 cable ties for a easy setup experience 【Enhanced Printing Reliability】: Prevents print failures by accurately detecting filament runout or breakage, helping you achieve consistent and successful prints Specification: Material: PP Size Chart: 3cmx5cm/1.18inchx1.97inch Package Includes: 1 Filament Detector, 1 Connecting Cable, 4 Screws, 4 Cable Ties Note: Please allow slightly errors 1-2cm/0.39-0.79inch differences due to manual measurement.