Features: Efficient heat dissipation performances: The all metal improves heat dissipation efficiency, effectively reduces the temperature of the extruder, and prevents overheating. From smooth and high Strength aluminum wear-resistantlu and not easily deformed, ensuring long time stability during use. Easy installation: Users can easily complete the installation without the need for professional technical support. Strong compatibility: specifically for k3 K3C, perfectly adapt to ensuringoptimaled performances. rapid heat dissipation design: Optimized the heat dissipation structure, greatly shorten the heat dissipation time, and improve printing efficiency. Specifications: Size：about 29.4×28.6×16.4mm/1.16x1.12x0.64in Component：Metal for k3 Extruder Heatsink Package Includes: 1PC Heatsink note: There might be a bit color distortions due to different computer resolution There might be size errors due to different computer resolution