This item cannot be shipped to Hokkaido or Okinawa. This is a plate set for barbells and dumbbells from Fieldoor. It's for 28mm bars. One of the 5kg plates has a repaired crack in the insertion part. It should be fine for use. This is for those who just want something that works. It will be sent with simple packaging. Shipping is included and will be sent in two packages. The price is about the actual shipping cost, so no price reduction is possible.