GRIPZILLA Dynamo Forearm Strengthener and Wrist, Comfortable Grip and a Durable Design Roller Perfect for Men and Women - Ideal for Hand, Wrist, and Forearm Strength Training, Workout - Wrist/Arm

Ist sehr effektiv, aber auf gripzilla kostet er nicht Mal die Hälfte!

The rotation movement is not smooth enough and the grip is very tough and you will need to wear a gloves if you are planning to use it for a long time, but for ten or twenty rotations you will be ok

Received this today. Out the box it's ready to use. Adjustments by way of two wing nut type fittings, so easy. First impression is it's very well made, light to handle, and the grips are textured so as to enhance the grip. So.. to using the item. Oh my, straight away you can feel it working, you feel the burn. Wow, very impressive bit of kit. I think because it is so convenient to just have handy, you can literally use it whilst watching TV or just sitting with a bit of time on your hands, therefore you do more reps than you think, due to its convenient size. Comes in a nylon zipper bag should you wish to take it on your travels or to the office, out walking, wherever. I would say a lot are put off by the price, and I must say, I did hesitate myself, but took the plunge and am very, very pleased, so for me, I will say it's value for money and certainly gives you a workout.

I must admit this is an impressive device. Super simple to use and ready to go out of the box. This is a very well made and durable product. This will make your forearms scream. Super effective and I am noticing growth and strength improvements in a short period of time.

Solid product - use it while watching tv