You can select your power from the drop down list, it's same power for both lenses. For mix of power, please choose 1 from the drop down list and key in 1 in the column below the drop down list. Please check stock availability in the drop down list 1st. Just like below.If it's out of stock, it will prompt out of stock notice.If the power is not shown, it means we do not have that power.If there is no column shown below the Select Power, it means power comes in same per pair, so you have to get 2 pairs for different prescription.