24V Diamond Hotend Multi Color Hot End 3 IN 1 OUT Extruder For Reprap Prusa I3 Rostock Extruder 3D Printer kit 0.4mm/ 1.75mm Manufacturer: 3D printer accessories; Model: pcb board; MPN: pcb board; Part Number: pcb board; UPC: ; Color: ; Brand: ; Department: ; Size: ; Warranty: ; Label: 3D printer accessories;