High Strength: The pawl is made of high-quality steel, which has high strength, wear resistance and durability. 3pcs Pawl+1pc Spring. For Models: 3-Claw tower base are as follows, A2 (tower base is a display item), for D042SB for D742SB for D812SB for F062SB for F372SB for F172SB 3-claw.