Removable cupholder liners on 2011 Buick Enclave

The manual says that the rubber inserts in the cupholders on the Buick Enclave are removable. I can't get them out. Does anyone know how to remove them? Thanks.

Asked by for the 2011 Buick Enclave
They are a tight fit with a this edge on the side, use a pick to pry away at the side and get the removal started.