Special design to use for most cars.
First, check the spring angle and choose the A, B, C clamp.
Assemble clamp on "a" and "b" fasten holder.
Then turn "c" turning wheel of "a" fastener holder, adjust to the proper position and then put adjust clamp on shock absorber to completely press spring will do.
To lock tightly "d" hydraulic valve and shake up and down for "e" hydraulic operating rod. Then hydraulic spring will move "b" clamp to fasten seat up to your proper height position. And then you can disassemble the shock absorber.
After dismantling and changing the shock absorber, to release slowly "d", and then "b" will lower to original position.
Contents:Clamp A.B.C