The top fixing depends on the system. It may involve a specified pressure mechanism, a mechanical attachment to the ceiling or a combination of supports.
Read the manufacturer's diagram to understand which parts make contact, which parts are adjusted and whether additional fasteners are required. Do not assume that turning an adjustable pole tightly against the ceiling completes every design's installation. Equally, do not add screws to a component that was not designed for them. The ceiling material and the condition of the contact area are part of the setup. If you cannot identify the fixing method from the listing, request the installation guide before ordering. After assembly, keep access to the top connection practical for the checks the maker requires. A hidden or unreachable fixing can make ongoing inspection unnecessarily difficult.
Find the step in the manual that secures the top assembly and identify every part shown there. If a screw, locking collar or ceiling plate is pictured but absent from the box, resolve the missing part before continuing.
For product comparisons alongside this advice, see Feline Sovereign Spire and Modern Vine. The details below explain their sizes and uses.
Further reading: .
Feline Sovereign Spire
Modern Vine
SkyRoute wall climbing set