Bits and Pieces - Trapped Satellite Metal Brainteaser Puzzle - Metal Spiked Ball In Steel Chamber - Brainteaser Puzzle Measures 3" x 1" The Trapped Satellite metal brainteaser is made of aluminum. Your goal is to remove the spiked ball from its steel chamber. A great gift for people who love brainteasers and trick puzzles. Can you remove the spiked ball from the cage? Brainteaser puzzle measures 3" x 1". Solution included.