Generic 3/8 & 1/2 Drive 2 Way 3 Claw Leg Jaw Oil Filter Wrench Remover two way Satin chrome finish steel construction with 3/8" & 1/2"Sq drive. Also suitable for use with a 21mm(13/16") spanner. Claws grip filter tighter as more torque is applied to wrench. 3/8" & 1/2"Sq drive 21mm(13/16") spanner