FREE SHIPPING ON ORDERS over $300.00 in the U.S.: (exceptions are HI, AK, international orders, sewing machines, Martelli tables, Omni Stands, Chairs, Extra-Large Cutting Mat 30 x 60 and certain products with mandatory shipping fees)
These will only be needed if you are using the Base rack with a Martelli self. You do not need the risers if you are bying just the base rack by itself.