Features: brand new and high quality The magnetic plate are very easy to use, simply stick the magnetic bottom sheet onto your heated bed, then place the steel platform with PEI surface on the top. Flexible Printing bed has double-sided PEI coating, both sides can be use,both side is textured. When printing is complete, let the spring steel sheet cool down enough (to around 40), then easily remove the prints. If the print is still stuck, just gently bend the steel plate. PEI sheet is applicable for 3D printer such as Ender-3 Pro, Ender-3 V2,Ender-3, Ender-3S, Ender-3X, Ender-5, Ender-5 Pro,CR-20, CR-20 Pro and similarly sized machines. Made of high quality stainless steel and strong magnetic base, stick the magnetic base to your printing build plate by peeling off the backing paper and sticking it to your bed, then place the steel plate onto the magnetic sheet. Keep the side with PEI facing up to print on. Please peel off the protective film on the surface before printing. Package Includes: 1x Magnetic Plate Specifications: Material:Stainless steel +Magnetic Size:18x18cm/20.3x20.3cm/22x22cm/23.5x23.5cm/30x30cm note: 1.Please allow 1-2cm errors due to manual measurement, make sure that you do not mind before you order. 2.Due to the difference between different monitors, the picture may not reflect the actual color of the item.