UUMART ALIGN 250DFC Main Rotor Grip Arm Integrated Control Link Set Helicopter This is the Align 250DFC Main Rotor Grip Arm Integrated Control Link Set for the Align T-Rex 250 Pro 250DFC Main rotor grip linkage bearing sleeve  2(2x3.2x3mm) 250DFC Main rotor grip arm integrated control link  2 250DFC Linkage rod A  2 681ZZ-d2 Bearing  4(2x4.5x2mm) Ball link  2(3.5x8.25mm) This is a perfect replacemnt for the old broken one If you have any problem,welcome to contact us