The Naval Parachutist Insignia, also known as “lead sleds”, is awarded to personnel upon successful completion of the Basic Airborne Course at the Navy and Marine Airborne School. The basic insignia is issued for completion of basic parachutist training, five qualifying jumps. The Navy and Marine Corps Parachutist breast insignia, also known as “gold wings” are issued after five additional qualifying jumps.
forrás: http://en.wikipedia.org/wiki/Badges_of_the_United_States_Marine_Corps