Geco bashplate with the grippers machined in to the underside.
Very trick looking and tough plate.
The sump plate is actually machined down from thicker plate, to leave the gripper angled parts that stop the bike from sliding back and then large bosses to give extra strength where the plate bolts up to the frame.
As used on the Beta Factory Team bikes.
BETA EVO 125 > 300  - 
Years 2011 > Present