Size: <br />#1: 21T 11181 Motor Gear<br />#2: 64T 11184 Main Gear<br />Material: Metal<br />Clolor: As the pictures shown<br />Fit for HSP 94103(PRO)・ 94107(PRO)・ 94111(PRO)・ 94123(PRO)・ 94170(PRO)<br />Package Included: 1 pc