Prusa MK4/4S build plate PEI build plate. Size: 254x241mm The two sides have different textures. One side is a rough surface, and the other is a carbon fiber-like texture. I purchased two from Amazon, but I don't plan to use one, so I'm selling it. The filaments I use adhere perfectly, and the quality of the adhesion surface is excellent. Shipping will be a simple package, just placed in an opaque waterproof bag, so please understand this before purchasing. [Amazon Product Description] This versatile PEO PEI build plate offers dual functionality with a diamond-coated side and a textured finish, measuring 254x241mm. Specifically designed for use with PRUSA I3 MK3, MK3S, MK3S+, MK4, and MK2.5S models, it adapts to various printing needs, ensuring adaptability. This unique feature allows users to switch between finish types depending on the requirements of a specific project, enhancing overall usability and performance. Diamond PEO Coating: The diamond PEO side of the build plate provides a smooth surface that allows for easy model removal, minimizing the risk of print damage. This smooth finish not only facilitates effortless cleanup but also improves the quality of the model's bottom layer. Say goodbye to frustrating print failures associated with difficult separation and embrace a seamless printing experience that produces clean, professional results. Textured PEI Advantage: The textured side of the build plate boasts a unique frosted texture that significantly improves model adhesion during the printing process. This crucial feature helps prevent issues such as WING, CURLING, and DETCHMENT, especially when using challenging materials like ABS and TPU. With enhanced pressure distribution, stability during printing is improved, making this build plate a reliable choice for both complex models and large prints.