Easy to install:
1.Pass the support rod through another support rod from the bottom and stack the top end of the hole neatly.
2.Secure the bottom of both support rods with plain nuts and washers.
3.Align the hole at the top of the support column with the hole of the concave-convex nut on the back of the mirror, and fix it with bolts.
4.Insert the finished lever into our for car hinge and secure the hinge side with nylon nuts and coupons.