Portable roller device

1. A roller device, comprising:

a core layer, the core layer having an outer surface, an inner surface, a first core layer edge, and a second core layer edge, the core layer further having a plurality of segments wherein each of the plurality of segments is rotatably coupled to at least one other segment in the plurality of segments; and

a coupling mechanism having a first portion disposed on a first segment that comprises the first core layer edge and a second portion disposed on a second segment that comprises the second core layer edge, the coupling mechanism having a releasable angled locking pin actuated by a pushbutton, the coupling mechanism configured to releasably secure the first core layer edge and the second core layer edge;

wherein the core layer forms a tubular inner cavity free from any structure in the tubular cavity, the tubular inner cavity adjacent to the inner surface of the core layer.

2. The device of claim 1 , wherein the each segment of the plurality of segments further comprises a first segment edge, a second segment edge, an outer surface and an inner surface, wherein the first segment edge is opposite the second segment edge.

3. The roller device of claim 2 , wherein the inner surface of the core layer comprises the inner surface of the plurality of segments.

4. The roller device of claim 2 , wherein each of the plurality of segments comprises a curved portion.

5. The roller device of claim 2 , wherein the outer surface of the core layer is cylindrical or polygonal.

6. The roller device of claim 2 , wherein the outer surface is textured.

7. The roller device of claim 2 , comprising a textured layer reversibly coupled to the outer surface of the plurality of segments.

8. A method of converting a roller device, the method comprising:

coupling a plurality of segments of the roller device, wherein the plurality of segments are configured to form a tubular shape having a tubular cavity, wherein each of the plurality of segments are coupled to neighboring segments of the plurality of segments, wherein each of the plurality of segments comprise a first segment edge and a second segment edge, wherein each first segment edge is respectively opposite each second segment edge within a segment;

releasably coupling the first segment edge of a first segment to a second edge of a first neighboring segment with a coupling mechanism having a releasable angled locking pin actuated by a pushbutton mechanism;

converting the roller device from a first position to a second position such that the tubular cavity is free from any structural element; and

locking the coupling mechanism.

9. The method of claim 8 , further comprising:

releasing the coupling mechanism to convert the roller device; and

converting the plurality of segments from the second position to the first position.

10. The method of claim 8 , wherein the first position is a flat position and the second position is a tubular shape.

11. A method for relieving muscle tension, the method comprising:

coupling a plurality of segments of a roller device, wherein the plurality of segments are configured to form a tubular shape having a tubular cavity, wherein each of the plurality of segments are coupled to neighboring segments of the plurality of segments, wherein each of the plurality of segments comprises a first segment edge and a second segment edge;

releasably coupling the first segment edge of a first segment to a second edge of a first neighboring segment with a coupling mechanism having a releasable angled locking pin actuated by a pushbutton mechanism;

converting the roller device from a first position to a second position such that the tubular cavity is free from any structural element;

applying the roller device to an area of a body; and

rolling the device across that area of the body.