Dance floor panel connectable wood board with aluminum edge for event use

The dance floor standard size is 3ft*3ft (91.5*91.5cm). The dance floor in video is solid teak wood surface with strong aluminum frame which can protect the wood floor for maximum durability.
How to lock the dance floor?? It has a set-screw locking system that just need to rotate the screw-thread insert for a tighter use. It will easy for user operate for repeat using.