Features: Efficient heating: Aluminum heating block has excellent thermal conductivity, which can quickly transfer heat to printing materials and improve printing efficiency. Durability: Good quality aluminum material, it is resistant to high temperature, corrosion, and has a long service life. Compatibility: Designed specifically for MK7 and MK8, ensuring perfect matching and stability. Uniform heating: well-designed heating block structure can evenly distribute heat, avoiding the generation of hot spots or cooling points during printing. Simple installation: Pre install the heating tube and temperature sensor, just connect them to start using. Specifications: Material: Aluminum Size:approx 16x16x12mm/0.63x0.63x0.47in Color： red1/Blue/Black/Silver Quantity: 1PC for Makebot MK7 and MK8 Printers Package Includes: 1PC Aluminum Heat Block note: Due to the problems of lighting effects and shooting angles, there will be certain tolerances in the product, please understand. Please allow 0-1cm error due to the manual measurment.