Doctor bar UNI for use in Optra E120/230/232/250/260/320/322/330/332/340/342/350/360/352/450/ 460; T420/430/520/522/620/622/630/632/634/640/642/644/650/652/654; OPTRA S/M/ R/L; DELL 5230; IBM3112/4019/4029/4039/4049/4059 (10pcs) - COMPATIBLE PRODUCT