BlueChip picks are not instrument specific. They work equally well with any guitar, mandolin, or anything you flatpick. The different shapes and thicknesses were created to suit your personal preferences. Find one that matches your current favorite pick. You can place an american quarter on your pick and then look at our pictures with quarters as a size reference.
We do recommend that dobro / resonator players stick with our thumbpicks that a created for that purpose as they hold up better to the harsh use.