Features 1、APPLICABLE MODEL: This build plate is round shape with the diameter of 309mm, suitable for Flsun V400 and other 3D printers of the same size. 2、FLEXIBLE STEEL MADE: The platform is made of spring steel, which will not kink or warp when slightly bent, with high strength and heat resistance. 3、PEI COATING: The spring steel plate is sprayed with double sided PEI, frosted texture makes it easier for the material to adhere to the surface. 4、EASY REMOVAL: Both sides can be used, and the printed mold can be easily removed from the platform by slightly bending. 5、HIGH FLATNESS: The flexible steel platform provides a flat construction surface, ensuring a high flatness of the printing bottom. Specification Item Type: 3D Print Bed Plate Material: Spring Steel, Soft Magnetic Diameter: Approx. 309mm/12.2in Package List 1 x PEI Plate 1 x Magnetic Base