Feature: 1. MK10 assembled extruder hotend kit is compatible with X5SA/X5SAPRO/XY-2PRO 3D printer. 2. 0.4mm nozzle; 1.75 filament size; aluminum heating block; and heater wire 24V 50W. 3. 100K ohm thermistor with pin head, 1 meter PTFE tube for 1.75mm filament. 4. Made of aluminum, with excellent heat resistance and heat insulation, durable and smooth printing. 5. Nozzle with silicone protective cover, safer and faster heating. Specification: Features: MK10 assembled extruder hotend kit is compatible with X5SA/X5SAPRO/XY-2PRO 3D printer. 0.4mm nozzle; 1.75 filament size; aluminum heating block; and heater wire 24V 50W. 100K ohm thermistor with pin head, 1 meter PTFE tube for 1.75mm filament. Made of aluminum, with excellent heat resistance and heat insulation, durable and smooth printing. Nozzle with silicone protective cover, safer and faster heating. Specifications: Heat Sink Material: Aluminum Heater Block Material: Aluminum Nozzle Material: Brass Filament Diameter: for 1.75mm Nozzle Size: 0.4mm Heating Wire: 24V 50W Tube Length: 1m/ 3.3ft Heater Block Size: 23 * 23 * 13mm/ 0.9 * 0.9 * 0.5in Package Size: 18 * 15 * 3cm / 7.1 * 5.9 * 1.2in Package Weight: 88g / 3.1oz Packing List: 1 * Hotend Extruder Kit Package List: 1 * Hotend Extruder Kit