This is the genuine tapered full metal angled build platform for Phrozen Sonic Mini & Mini 4K 3D printers.
It is a fully angled bed to allow the resin to flow down smoothly.
Using this build platform will minimize resin accumulation on the top of the plate, allowing it to more readily drip back into the vat during printing.
This makes clean-up and print removal faster, easier, and less messy overall so that you can spend more time printing.
If you print a lot, or print very fast, or print larger parts, this all-metal build plate is the perfect choice.