COMPATIBILITY: PEI sheet spring steel build plate is suitable for for ENDER3 3s pro V2, for Aquila, for Neptune3 pro, for neptune 4 printers. PREMIUM PERFORMANCE: Excellent magnetism, adhesion and elasticity, the printing surface can effectively adhere to a variety of printing materials. Effectively prevents edge warping. The print can be easily removed by slightly bending the print . EASY TO USE: PEI sheet spring steel build plate is easy to use, just stick the magnetic base plate to the heated bed and place the steel platform with PEI surface on top. REMOVABLE Can withstand countless thermal cycles of the 3D printing platform, easy to remove, flexible PEI surface can be randomly curved, easy to remove and slick, the bottom will not leave any marks . PEI COATING: The PEI coating on the surface of the spring steel plate makes it durable, not easy to scratch, prevents the nozzle from damaging the platform, drop resistance, not easy to deform, no glass bed breakage problem.