Spanish artist Ana Soler debuts her quirky, yet genius installation Causa-Efecto at the Mustang Art Gallery in Alicante, Spain this year. The exhibit features 2,000 tennis balls, pedantically hung from varying lengths to resemble a ball bouncing in various physical trajectories. It’s truly a breathtaking piece, and can be viewed in the pictures below, as well as a hi-def video of the exhibit in real life, which was hosted by Ana herself.