You are buying a new Original Progressive Front Fork Lowering Kit for 1990 & newer Harley Softail models, except Springers.
This Kit can lower the front end of your bike 1-2" depending on the springs selected. Installation instructions are included, and requires complete disassembly of the front forks. You will need new fork seals and a can of fork oil to do the install, which we have in our store.
If you are looking for the Progressive Drop-In Kit, we do have it available as well.