This is a set of 4 rubber 4-1/2" sanding drums.  The sizes included are  2-1/2", 2-1/4", 2", and 1-1/4".  The drums are  bored to 3/4" and have a removable 1/2" sleeve.  Save 25% over the individual prices.   Shipping on this item is free via USPS or UPS. I do combine shipping wherever possible. I do ship internationally.  Just email me and I will quote shipping to your country.