- Gravitrax expansion pack: hammer
- Only playable with gravitrax starter set.
- Clear instructions – comes with clear instructions so that you can start building and playing within minutes.
- Develops critical skills – playing and building with gravitrax builds spatial reasoning and planning skills, and provides a great stealth learning experience.
- As seen on TV – gravitrax was featured on 'live with Kelly and Ryan' As one of the best products shown at the 2018 new York toy fair.
- Includes - 1 hammer block, 1 long Track, 2 medium tracks, 3 short tracks, instructions.
- For ages 8+