VTech Go! Go! Smart Wheels Ultimate Corkscrew Tower Parents' Manual page 16

2. Each section of Spiral Track has 2 numbered brackets. Starting
with track A at the bottom, match each Bracket with the tab of the
same number and snap into place. Use the Track Connectors to
join the Spiral Track segments.
3. Place the Launcher on top of Support Column B.
4. Use the Track Connectors to join the Y Track, Spiral Track and
Launcher together. If you cannot connect the Y Track, adjust the
insertion angle of the Launcher to assemble.
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