This bangle is iro urushi (Japanese layered lacquer, Urushi is the sap from a staghorn sumac tree) but also has also been called camo bakelite or even Fordite (layers of oversprayed automotive paint).
Hard to find tall walled tube shaped camo bakelite bangle tan with reddish brown, mauvy pink and pale butterscotch measures 7/16" wide with small 2 3/8" wrist and 3/8" wall height.
Please note the smaller wrist size on this bangle.