Climbing Tree Sculpture - the video. Manual operation and randomizing elements in this piece make the marble paths unpredictable due to small variations in marble size, speed, rail contact, and position. Dimensions are approximately 36” tall x 20” wide x 16” deep. Higher quality video available on NxtLight.com #rollingballsculpture #metalart #metalartist #metalsculpture #indianaartist #marbles #mechanicalsculpture #random #complexity #complexmovement #kineticart #kineticsculpture #displayart #architecturaldigest #fineart #fineartsculpture