When should I move from a Z2 to a Z3? i can do 2 x 10 of the Z2 (use some eggs and the Z1 for warmups)

Most experienced grip trainers will tell you that it takes about 25 reps to move up a whole number, since there are no half sizes in zeniths you could wait until then or just get a three, "force close" it with both hands and hold it for as long as you can for negatives. Also please get yourself some strong rubber bands and a wrist roller for extensor training I trained to imbalanced and tore my tendon now I am dealing with tennis elbow which has set me back a bit.

Zenith 1 is comparable to which gripper level of COC reststance?

Ultrared: Thank you for your inquiry. We do not rate Zenith grippers in direct comparison to CoC grippers because the two grippers, while designed to work perfectly together, feel very different. You use Zenith to maintain strong and healthy hands, doing moderate to high reps to for strength and endurance. Captains of Crush grippers are designed to build maximum strength using low reps and 1RM workouts. What we can say is that a Zenith 1 is easier than a CoC No. 1, and so on up the line – so a Zenith 1 is closer to a CoC Trainer. Please let us know if you have any further questions. Thank you.

I have all the coc series including imtug, what is the the difference between the coc regular grippers and zenith? should one have both of the series?

Besides coc having knurled handles versus zenith smooth, the coc grippers are rated differently, examples being, coc number 1 is equivalent to zenith number 2. One series is fine, however, zenith's grippers have a limit as far as grip strength is concerned. Products are great. They all work!

How many reps are the Zenith designed for without breaking the spring?

Thank you for asking, and although we’ve never taken one to failure, Zenith is designed for a longer life than a conventional gripper. That being said, all springs will break at some point, so doing excessively high reps on a gripper will prematurely shorten its life . . . for an essentially infinite number of reps, the IronMind EGG is a perfect choice.

Material	Iron
Brand	IRONMIND
Item Weight	0.75 Pounds
Style	Dumbell
UPC	792382309641
Global Trade Identification Number	00792382309641
Item model number	4332652904
ASIN	B00B5JDYPI

Zenith Agility Gripper from IronMind: Strength and Conditioning

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