Three (3) Extrema Ratio Knives, New in Boxes. Knife Models: Corvo Black Fixed, Rubio Black Fixed, and Rao Large Folder This lot may be picked up free of charge from our facilities in Sacramento, CA. Processing and shipping within the Continental US $60.00. All FedEx packages are sent with Direct Signature Required and insured at full replacement value for a fee of 1.5% of the purchase price, unless buyer accepts complete liability in writing. Discounts given on combined lot shipping.