Shipping list.E3D Hemera Extruder Backplate Kit*1Features:1. Aluminum oxide is a high hardness compound that is not easily corroded in the air.2. Precise size hole position, easy to install.3. High temperature performance shrinkage stability and durability.4. Sturdy material with excellent wear rate.5. Quick installation of Hemera extruder for your own Creality machine, compatible with many upgraded designs of Hemera extruder on Thingiverse.6. All metal anodized 6061 aluminum alloy manufacturing, strong and durable, light weight.7. Support auto leveling bracket installation or you can design your own new auto leveling switch bracket.