Features: Elevate your 3D printing game with the 3D Printing heat bed sheet, designed for long-lasting use and reusability. With a flat surface and no bubble phenomenon, this protective printing platform is easy to use; Suitable for 3D printing enthusiasts, hobbyists, and professionals looking to improve their printing experience. Perfect for use in home studios, schools, and businesses, this printing bed sheet ensures precise and efficient printing. MK3 Printing Bed with Round Corners for 3D Printers; Specifications: Material:Aluminum Size:Approx.220x220mm/8.66x8.66in,300x300mm/11.81x11.81in,400x400mm/15.75x15.75in Option Type:1x12V 220x220mm Heat Bed,1x24V 220x220mm Heat Bed,1x12v 300x300mm Heat Bed,1x24V 300x300mm Heat Bed,1x24V 400x400mm Heat Bed, Note: Please allow 1-2cm errors due to manual measurement,please make sure that you do not mind before you order. Due to the difference between different monitors, the picture may not reflect the actual color of the item. Package includes: 1xMK3 Heat Bed