Lego GBC Golf Putter V2 is a Lego Great Ball Contraption Module
This video covers the height extension adapters.
V1 Putter vs V2 Putter: 0
2-2/3 brick height extension: 3:36
5 brick height extension:10:07
For instructions for these adapters and the mini golf course see
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Filming and editing by Lawrie George
Lawrie George: GBC Creator
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GBC Instructions and Collateral:
