Features 1、Enhanced Capabilities: Ideal for all 3D printing enthusiasts, this kit boosts your skills and output quality, compatible with for Prusa i3 MK4 24V 40W for exceptional results. 2、Ideal for Various Projects: Designed for hobbyists, this user friendly heater block kit is ideal for various projects, ensuring easy installation and seamless integration. 3、Excellent Interference Resistance: With a long lifespan and excellent interference resistance, this kit guarantees stability and reliability for consistent performance. 4、Accuracy Engineering: The hotend component is engineered to deliver accurate temperature control and heat distribution, enhancing printing accuracy and detail. 5、Ideal Replacement: Wonderful replacement for the old and damaged parts, fine workmanship, attention to details, helps you improve the working efficiency! Specification Item Type: 3D Printer Hotend Heater Block Kit Material: Aluminum Alloy Heating Component Power: 24V 40W Package List 1 x Heating Aluminum Block 1 x Thermistor Cable 1 x Heating Rod 6 x Feeding Tube