Replacement Bolt / Lever / Screw for 717 E-image / Weifeng Video Head Arm all Metal Far superior to the original plastic lever. All Metal bolt and lever (to replace the plastic lever on the arm). Attaches the 717 arm to the 717 head. Desmond brand Fits: All 717 brands inc: Cowboystudio, Dynex, Ephoto, E-Image, Fancier etc