Heatable massage roller and posture aid

1. A massage roller comprising:

a central spinal recess portion;

a circular wall portion on each side of the spinal recess portion;

an outer portion extending outwardly from each of the circular wall portions, the outer portion having a first diameter at or near the circular wall portion, and a second diameter remote from the circular wall portion, the second diameter being larger than the first diameter; and

a plurality of rows of circumferential linearly arranged protrusions formed on the outer portion, including a first set of protrusions of relatively larger size and diameter adjacent the circular wall portion, a second set of protrusions of relatively smaller size and diameter remote from the circular wall portion, and a third set of protrusions of intermediate size and diameter between the first set of protrusions and the second set of protrusions.

2. A massage roller as claimed in claim 1 wherein the central spinal recess portion has a diameter which is substantially the same as the first diameter of the outer portion.

3. A massage roller as claimed in claim 1 wherein the central spinal recess portion generally comprises a flat band of circular shape.

4. A massage roller as claimed in claim 1 wherein the circular wall portion comprises a wider base portion tapering towards a rounded top portion.

5. A massage roller as claimed in claim 1 wherein the circular wall portion comprises a series of contoured humps along at least a portion thereof.

6. A massage roller as claimed in claim 1 wherein the circular wall portion comprises a series of linearly arranged protrusions along at least a portion thereof.

7. A massage roller as claimed in claim 1 comprising a hollow cavity formed therein, the hollow cavity having an outlet channel and a plug for selectively sealing and opening access to the hollow cavity.

8. A massage roller as claimed in claim 7 further comprising a fill material located in the hollow cavity thereof.

9. A massage roller as claimed in claim 1 further comprising an end portion at each of the ends of the outer portions.

10. A massage roller as claimed in claim 9 wherein at least one of the end portions has a plurality of protrusions or ribs formed thereon.

11. A massage roller as claimed in claim 1 wherein the outer portion at or near the end thereof remote from the circular wall has a diameter which is substantially the same as the diameter of the outer wall.