The basic items required to clean a 400 day movement with disassembly. This kit is for the person who would like to do a simple clock cleaning with out having to learn an intense amount of clock repair information or Horology. The goal to cleaning a clock movement is to remove old oil that has solidified and put new oil in its place. Solidified clock oil creates wear to the movements outer plates and eventually causes to much friction for the clock to run. With a good cleaning of the anniversary 400 day clock and a new suspension spring, there ready to run for years to come.