For Creality K2 Plus Upgraded Extruder Gear Kit Mold Steel Nickel DLC Coated Heat Resistant Material For K2 Plus Mold steel material, nickel plated, DLC Coating, High Hardness, Wear Resistance. Dual Gear Feeding, 6.25:1 Gear Reduction Ratio, and printing is more stable. For Creality K2 Plus Extruder,High Quality Replacement Gears, Solve the problemofinsufficientfilament extrusion during high speed printing. Compatible with various filaments: suitable for different materials, including PLA/PLA+/Hyper/TPU/PETG/ABS, etc. Color: Black Material: Mold Steel + nickel plating Package Contents: 2 * Extrusion Gear 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. _x000D_ _x000D_