The Metal Grip Strengtheners are made of aluminium and feature stainless steel springs.

There are five levels of tension available: 75lb, 100lb, 150lb, 200lb and 250lb.

The colours of the grip strengtheners do not mean anything. The strengtheners have different tension levels - 75lb, 150lb and 250lb just happen to be gold in colour, while 100lb and 200lb happen to be silver.

Yes, both the Metal Grip Strengtheners and Power Gripper are very effective for rehabilitation. If you are suffering from an injury, we recommend that you start with a low-tension level and gradually increase the tension as you recover and grow stronger (this may require going up a level in the Metal Grip Strengtheners or simply adjusting the tension of your Power Gripper). Using these strengtheners even just for a couple of minutes a day is enough to gently rehabilitate an injury in the hand, wrist and forearm by repairing damaged tissue and rebuilding strength.

We always recommend starting with a low-tension strengthener first for rehabilitation, such as the 75lb strengthener.

Which strengthener you choose should depend entirely on your fitness level. It is important to judge this as best you can, as you do not want to risk over-exerting yourself and causing injury. For advanced-level athletes who already practice strengthening on a regular basis (such as lift weights or very frequently practice a grip-based sport, such as tennis, martial arts, climbing, cycling, etc.) we recommend the 150lb, 200lb (advanced) or 250lb (elite) Metal Grip Strengtheners.

Yes. The Metal Grip Strengtheners are suitable for both beginners and pros alike. We recommend that you start at a tension level which you feel is most suited to your level of fitness. If you regularly lift weights or do another form of intense strength training, then you may be ready to start with one of the high-tension strengtheners. If you are completely new to strength training or if you are looking to rehabilitate an injury, then it might be best for you to start with a low-level strengthener.

75lb & 100lb Strengtheners - Beginner to intermediate level training

150lb - 200lb Strengtheners - Advanced strength training

250 Strengthener - Elite level training

Every Metal Grip Strengthener comes with its own convenient black carry bag and two rubber sleeves for a more comfortable grip.