It has a spring system that is very stiff. Push the base from the bottom up and then tilt the top towards you. Be careful, don't damage your wall. This spring system sucks.
Watch "How to Install Bathroom Racks - Delta 3 Piece Bath Kit" on YouTube
I would try to contact Delta. That to me seems the best source for your answer.
RD, Thank you for your question. The dimensions of the toilet paper holder are 2.16” h x 9.70” w x 3.31” D. The dimensions can also be found on the web page on the top left corner with the pictures. Best, Customer Care Team
It is static.
I don't know exactly as my husband installed. You should call the company.
Holds large rolls of toilet paper.