Features: aluminum alloy construction ensures rapid heat dissipation, enhanceds durability, and corrosion resistance for 3 extruder heatsink in demanding 3D printing operations. precisions engineered with aluminum materials for installation and compatibility with 3 printers all metal heat dissipation system. for maker, engineers, and hobbyists thermals management in high performances 3D printer parts and access. Optimizes printer efficiency during extended printing, preventing overheating in complex ABS projects and rapid prototyping workflows. Maintains consistent extruder temperature control across prolonged usage cycles, ensuring accuracy for intricate 3D printed models. Specifications: Materials: Aluminum alloy Size:29.4x28.6mm/1.16x1.12inch Package Includes: 1PC Extruer Heat Sink note: Please allow 0-1cm error due to manual measurement. make sure you not mind before bid. Due to the differences between different monitors, the Pictures may not reflect the actual of the item.