Feature: 1. APPLICABLE MODEL: The aluminum heating block is compatible with the original for Kobra 3 printer and is an important accessory for a nice replacement 2. HIGH TEMPERATURE RESISTANT: High temperature resistant heating block is made of special aluminum. This alloy has a very high softening point, well above 500℃, which is suitable for 3D printing at high temperatures that other heaters cannot withstand 3. ACCURATE MANUFACTURING: The aluminum heating block is processed by high accuracy numerical control, making the interface of the heating block smoother and more accurate, ensuring the tight connection between the heating block and effectively preventing the leakage of the filament 4. FAST AND EFFICIENT: Aluminum heater block support fast heating, quickly get to the required temperature in the printing process, improve printing efficiency 5. EXCELLENT PERFORMANCE: Aluminum heater block is made with fine workmanship, possess compact appearance and stable performance, can make sure durability and stability Specification: Item Type: Aluminum Heating Block Material: Aluminum alloy Size: Approx. 19.9 x 18.4 x 11.9mm / 0.78 x 0.72 x 0.47in . Package List: 2 x Heating Blocks