Better alternatives out there
Witbox 1 has been replaced by Witbox 2, but dont get fooled, you get the same for the same price, which means NO THANKS. Read my review on the Witbox2. On Witbox1 you can actively level the bed manually, but the ratio of lost steps on the printers made me send them all of them to customer support for fixing issues over and over. Unreliable for the price you pay.