The material a pole is made of will determine the weight and strength of the pole.
Aluminum is common in junior and beginner poles. It is heavier than carbon fiber or other high tech materials but is durable and very economical.
High Grade Aluminum is common in high end poles. It has a high strength to weight ratio making it very durable while providing a stiffer feel than some of the lighter weight composite or carbon fiber alternatives.
Composite is common in beginner to intermediate poles. It is more flexible and durable than standard aluminum.
Carbon is common advanced and expert poles. It has a high strength to weight ratio and, unlike High Grade Aluminum, is flexible improving durability while maintaining an ultra light feel.