Split the directions of the marbles with the Splitter. See if the marbles have enough speed to roll across the trap door.
GraviTrax PRO: Extreme Set : Toys & Games
GRAVITRAX PRO TURNTABLE - THE TOY STORE
GraviTrax PRO Extreme Starter Set - MACkite
Gravitrax PRO splitter extension set unboxing with demo tracks
GraviTrax goes vertical with the GraviTrax PRO Starter Set. GraviTrax is an innovative marble run and contruction toy for boys and for girls ages 8 years and up. It is an ideal christmas gift or birthday gift for smart, curious kids. GraviTrax goes vertical with the GraviTrax PRO Starter Set. With 149 elements that include unique components, this set offers everything you need to begin building your own vertical action-packed track systems.
GraviTrax Pro - Starter Set - Vertical
Ravensburger GraviTrax PRO Element Releaser - Accessory for the Marble Track System. Can be combined with all GraviTrax product lines, starter sets, extensions and elements, construction toys
GraviTrax PRO Splitter - Tri-M Specialty Products
Gravitrax Pro Splitter Expansion
GraviTrax PRO: Extreme Set : Toys & Games
Ravensburger GraviTrax PRO Extension Turntable - Playpolis
What's in the GraviTrax PRO Splitter Element?
GeekMom: GraviTrax PRO Adds Height and Bonus Physics to Your GraviTrax Experience - GeekDad