This 15 inch building plate from Phrozen is an original replacement part from Phrozen. The plate can also be used as an extra building plate so that you can quickly continue making your next 3D print. You can easily calibrate this plate at 4 points. In addition, the building plate is sturdy and will not deform. Finally, the building plate is cost-effective and lightweight. This product is compatible with Phrozen Sonic Mega 8K S 3D printers.