Sep 21, 2018 - 08:23 AM
Thank you for contacting Biobidet Support!
I do apologize there are no included instructions in the replacement seat!
We are implementing DIY instructions very soon and will be in the near future included in package.
For your reference, please see PDF instructiuons to change out the replacement BB-2000 seat!
Source: BB-2000 Replacement Seat Instructions