- The RPE baby expansion screw is intended for the rapid expansion of the palate suture. - The model with 2 arms may be an alternative to the expander A0621. - Supplied with a swivel key with a handle to facilitate the endoral activation. - Arms:1.5mm. - Body:16mm. - Expansion:11mm. - One turn:0.8mm. **For further product information, please contact Chat support**