Included in the package is one nozzle, available in the following sizes: 0.4mm, 0.5mm, 0.6mm, and 0.8mm. The nozzle is depicted in the images below:
3D Printer Part - 20mm Profile Black Aluminum Angle Corner Connector for Extruder
$5.99
5-Pack 40W 12V Cartridge Heater, 6mm x 20mm, for Reprap 3D Printer
$9.54
BIGTREETECH V6 Brass Nozzle 0.4/0.5/0.6/0.8mm for V5 V6 Hotend Prusa i3 MK3 3D Printer, Compatible with 1.75MM Filament
$7.24