Fire strings by PERIMETRIK® Bonn/Darmstadt | 8.5.2017 | Trampoline Acts Fire strings Top class trampoline performances. Energetic music played live on a violin matched with peak performances on the grand trampoline, framed by fire effects – that’s Fire Strings. Gallery TrampolinactsThree tenors Fire strings Green Man Air Show Fairyland Referee Revolution Rock meets classic Tramp Wall