In game description:
"We've come a long way in methods of settling disputes, but this technique still works."
Rarity: 55
To grow, splice a Sequoia Tree Seed with a Cutaway Building Seed.
This item never drops any seeds.
Caveman Club
Prehistoric Pack
This item can also be obtained from the Prehistoric Pack for 5000 gems.
Additional Info
The Caveman Club also applies the same mod as the Just One Boxing Glove which allows you to punch other players harder.