mandrill Grip Strengthener Kit, 4-Pieces

Last updated: June 11, 2022

mandrill Grip Strengthener Kit, 4-Pieces

Our Review Process

Don't Waste Your Money is focused on helping you make the best purchasing decision. Our team of experts spends hundreds of hours analyzing, testing, and researching products so you don't have to. Learn more.

Don't Waste Your Money Seal of Approval
Look for the DWYM seal for products that are the best in the category.
Show Contents

We looked at the top Grip Strengtheners and dug through the reviews from some of the most popular review sites. Through this analysis, we've determined the best Grip Strengthener you should buy.

Overall Take

In our analysis of 29 expert reviews, the mandrill Grip Strengthener Kit, 4-Pieces placed 6th when we looked at the top 9 products in the category. For the full ranking, see below.

From The Manufacturer

Why choose our Mandrill 4-in-1 Complete Hand Strengthener Kit? Mandrill Team developed the most effective and comprehensive hand workout/grip strength trainer kit that satisfies all your needs. Mandrill grip strengthener helps you increase the performance and gain strength Our products will help you improve finger strength and dexterity, perfect for athletes, musicians or fitness. Great for rehabilitation, recovery and stress relief. Beneficial for people who have arthritis, tennis elbow, rheumatoid arthritis and carpal tunnel or hand, shoulder, finger surgery. Using our product will help you reduce joint pains, stiffness, release daily stress and increase blood circulation.

Expert Reviews

What experts liked

Industrial hand strengthener with resistance from 22 to 88 pounds. Suitable for hands of all sizes. Includes apparatus for finger exercise and a carrying case. 3-year warranty and 100% dedication to customer satisfaction. How-to eBook included with purchase.
Comfortable to use in a small space
And because the tensions are adjustable, the whole family can get some major use out of this set.
An ergonomic handle ideal for all sizes makes it more comfortable to grip even for use over longer periods.

What experts didn't like

Plastic parts may not hold up as well over time as metal strengtheners. Finger stretcher can break easily in some kits.
Instructions to access the eBook may not be clear
The tension is not too tight which might not be effective for more advanced users


How strong is your grip? You may not realize it, but grip strength has been linked to overall mortality, as well as how your body strength will hold up as you age. There are things you can do to improve your grip strength, though. By doing so, you won’t just ensure you have a solid handshake, but you’ll likely also keep your motor skills strong.

But first, it’s important to understand how grip works. Your grip actually starts in your forearm with several important muscles. The flexor digitorum profundis and flexor pollicis longus help you grip, while the extensor digitorum communis muscle helps you extend your hand and relax your grip. When you’re strengthening your grip, you’re actually working muscles in your forearm that contribute to your grip in addition to your hand and fingers.

But you can find exercisers designed to strengthen your fingers, as well. Some grip strengtheners come with those other items included, helping you ensure your fingers and thumb are well worked out. If you choose a set like this, make sure you have a way to easily store it all, especially if you’ll be taking it on the road with you. Some come with a carrying case, but you can also buy a bag separately.

When you’re working on building hand strength, it’s important to look at the different types of gripping exercises:

  • Crushing: This is the act of wrapping your fingers and hand around something and clamping, then having your fingers create force against some type of resistance.
  • Pinching: This exercise has you grasping something with the thumbs in opposition to the fingers.
  • Supporting: With this exercise, your fingers take most of the load while you lift something.
  • Extension: This workout has you opening your fingers and thumb to stretch the hand muscles.

More to explore