Double adapters have pyramid adjustment cores on both sides.
M8 adjustment screws are zinc-coated.
Under the certain demand, titanium versions can be converted to the Waterproof product with water discharge channels and A2 Stainless Steel set screws.
The socket attachment blocks are bonded to the distal end of the prosthetic socket and then laminated together with it. They serve to connect the prosthetic socket to a socket adapter.