Become a Ninja! Ninja Thinking Putty™ features a unique formula that builds resistance as you play. This amazing putty actually absorbs your strength—getting tenser and tenser with each stretch—to leave you feeling like a true Ninja.
Become a Ninja! Ninja Thinking Putty™ features a unique formula that builds resistance as you play. This amazing putty actually absorbs your strength—getting tenser and tenser with each stretch—to leave you feeling like a true Ninja.