Tripod or triangle grips promote correct finger placement. This grip is the most common. It is usually the grip a child is given at the first sign of troubled hand placement. Adults can also use the triangle grip to relearn finger placement. Adults can be self-conscious of their finger placement in meetings or other career environments, but the problem is easily corrected by using a triangle grip. Triangle grips work best for right-handed people.
Heavyweight grips come in two varieties. They can be placed over a pen or pencil or you can purchase a pen with a built-in grip. These grips are good for people who's health issues limit mobility or dexterity. The heavyweight grip is weighted so a person doesn't need to press down while they write. The grip does the work for you when your muscles are too weak or injured. This grip is a good option for elderly people or people recovering from a broken arm or other injury.
EZ Grips are most often found in a business environment. With growing concern for ergonomics, companies are incorporating pencil grips to enhance hand and wrist support. EZ Grips fit over a pencil and provide support in the fingers, hand, and wrist. They encourage proper finger placement and work to keep the hand ergonomically correct and aligned. This grip can alleviate carpal tunnel syndrome and other repetitive strain injuries.
Solo grips are one of the only pencil grips designed for left-handed people. The finger grooves are more adapted to a left-handed grip but they can be used by right-handers as well. The grooves of a solo grip fit most people's fingers comfortably. If you had to provide grips for everyone in a classroom or office, solo grips would be your best option. They are all-purpose grips that fit over most types of pens and pencils.