GYMAX GYM08540, GYM08541 Operating instructions

Hello! I have reviewed the user manual for the Christmas Tree, specifically the 1.5M, 1.8M, 2.1M, 2.4M, and 2.7M models. This document includes assembly instructions and a warning about removing plastic caps before assembly. I am ready to answer your questions about the tree.
What sizes of trees does the manual cover?

What should I do with the plastic caps on the poles?

What components are included for the 1.5M (5ft) tree?

What components are specific to the 2.7M (9ft) tree?