LM-OrthoSizer™ is a tool for aiding the selection of the appropriate LM-Activator™ size. The size is indicative and LM-Activator™ should always be fitted to ensure the correct size. There are two models: one for LM-Activator™ (9400) and another (9402) for My LM-Activator™ and LM-Activator™ 2. Both are compatible with LM™ mirror handles