Tent Bay is in Boston near Symphony Hall. It was designed by a musician who won the competition and is like a broken Treble Clef which seemed fitting for being so close to the music in the hall. It is made of aluminum and the finish is sandblasted. One reason is that when it gets graffiti it can be sandblasted to new condition.
Another consideration in the design was to add a foundation leg in between the two original feet, which would serve as a dampener to motion. The concern was if 50 people, students, were sitting on the piece and started to jump up and down in unison, things might become violent and start braking.