Bionator

This particular one is made to open the bite.

Includes labial bow, coffin wire, anterior spring, reinforcement wire, and an anterior acrylic cap.

Can be made with or without (shown) an expansion screw.

Jackson

We make many variations of this appliance.
  
The one shown in the large  photo has a "W" wire made of .051" wire, 2 modified anterior mushroom sweeps, 4 ball clasps, 2 molar rests, and  2 eyelets.

Schwarz

We make several variations of this functional appliance.
  
The one shown in this photo has 2 expansion screws, 2 adams clasps, and 2 triangle clasps.

Other options include fewer screws, different clasping, occlusal cover, and articulation.

A lower Schwarz is also available.

Schwarz

Here's another variation which includes 1 screw, 4 c clasps, anterior springs, clear occlusal coverage, and is articulated.

Sagittal

Includes 2 screws, 2 adams clasps, 2 triangle clasps, braided reinforcement wires, occlusal coverage, and is
articulated.

Shamy

Includes 3 adams clasps, an anterior bite plate, and a helix spring made of .022" x .028" wire.