Purchase one pack of 5 patches. You can select the number of packs by increasing the unit numbers. So if you select 1 unit, you will receive one pack of 5 patches. If you select 2 units, you will receive 2 packs with 5 patches in each pack.
Your patches will be sent out through the US mail with tracking. You will be notified and it usually takes 2 days for most parts of the country.