Features: 220 x 220mm12V heat bed hot plate for 3D printer. High sensitivity, rapid response, good stability, high reliability. Aluminum plate process. Combined with the aluminum substrate heating stage, the degree of temperature rise better balanced. The new circuit, power supply power is stable. Built-in thermistor and heating element. Specifications:Model: MK3Color: BlackSize: 220 * 220 * 3mm / 8.7 * 8.7 * 0.1inchMaterial: AluminumProcess: Aluminum plate processVoltage: 12VApplicable device: For 3D printerPackage weight: 395gPackage List:1 x Heat Bed for 3D Printer (Other items are not included)