Add a touch of surprise to your tracks by sending up to three marbles into the Gravitrax Pro Vertical Mixer and see which way they come out. Mix the marbles' path with the Mixer. Add a touch of surprise to your tracks by sending up to three marbles into the mixer and see which way they come out. Combine this accessory with the GraviTrax Pro Starter Set. This set includes 1x Mixer Base.
8 years and older
