Doorbel/peep doesnt fit

So i bought the video doorbell ring device . Tried to install it but the peephole part on the outside only just reaches to the edge on the inside so the part for inside doesnt reach to grab it n hold in place is there any extras i can use like a extender of some sort

Hey @Basttiiaan. We do not have a way to extend the length of this at this time, so I would recommend getting a different Doorbell to install since this isn’t the right fit for you!