The deal includes Classic and Master Shakes and is limited to five discounted shakes per order at participating Sonic restaurants.
Sonic Classic Shakes includes:
- Fresh Banana Shake
- Caramel Shake
- Chocolate Shake
- Strawberry Shake
- Vanilla Shake
- Hot Fudge Shake
- Peanut Butter Shake
The current Master Shake selection includes:
- Oreo Peanut Butter Shake
- Oreo Chocolate Shake
- Oreo Cheesecake Shake
- Strawberry Cheesecake Shake
- Cheesecake Shake
Photo via Sonic.
