Fully made from biomedical stainless steel. 
Laser welding of the expansion arms into the body is accomplished without the use of solder to eliminate any rough areas or intersections for secure hygiene,
For distal, mesial and expansion or contraction movements of a single tooth,
Optimum movement and anchorage control to the tripod rest,
Ultra small body for patient comfort,
Expander can be placed high in the palate,
Mark with direction arrow,
Adjustment key is included.
 
 
Housing
M-D
 
Maximum
Complete
 
Length
Length
Height
Expansion
Turn
5EX-4A8
12mm
11mm
3.5mm
8mm
0.8mm
5EX-4A9
14mm
11mm
3.5mm
9mm
0.8mm
5EX-4A11
15mm
11mm
3.5mm
11mm
0.8mm
5EX-4A13
18mm
11mm
3.5mm
13mm
0.8mm