The wedge is used for alignment on specific types of FMC tubing hangers, with this particular design allowing for the alignment of multiple-string tubing hangers without external manipulation methods. Like all FMC tubing heads, the TC-WD-ET is of a straight-bore design, more economical to recondition after abandonment.
If you want to talk to an Instagram customer service representative on the phone, they can be reached toll-free at 1-650-543-4800. Again, though, some people have mentioned that this phone number simply goes to Facebook (Instagram's owner), and they say that they don't do over-the-phone support for Instagram.
Instagram. 1  https://scontent.cdninstagram.com/t50.2886-16/21196598_130676977552267_8315998519844405248_n.mp4. 2  https://scontent.cdninstagram.com/t50.2886-16/21081001_537968959868246_565299944777318400_n.mp4. 3  https://scontent.cdninstagram.com/t50.2886-16/21102438_508887562779974_1703320025990955008_n.mp4.