- Materials: EVA foam, ABS plastic
- Texture: Dimpled and contoured
- Dimensions: 4 in. x 5 in.; 6 in. x 5 in.; 10 in. x 5 in.; 12 in. x 5 in.
- Weight: Varies
Pros
- Unique design targets muscles between shoulder blades
- Three sizes offer a range of pressure
Cons
- Less versatile
