Children deserve the best, that's why we present to you Science Game Ravensburger Gravitrax Power, ideal for those who seek quality products for their little ones! Get Ravensburger and other brands and licences at the best prices!. Recommended use: Inside. Number of players: 1 Players. Type: Science Game. Recommended age:. + 8 Years. Children's. General Product Safety Regulations information:. Ravensburger AG. Robert-Bosch-Straße 1, Ravensburg, Germany, 88214. 88214 - Ravensburg. +4975158620. info@ravensburger.de. https://www.ravensburger.com