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Ninja Finger (Palmar Interossei) trainer

Delivery Nov 16 – Nov 23
(2 customer reviews)

Original price was: $35.00.Current price is: $27.00.

I designed this unique device to train the small help train the small muscles that are used to close the distance between your finger. Technically these are your Palmar Interossei muscles. These muscle are very under considered when training hand strength. Training them is a great way to thicken your hand as well as increase individual finger stability and strength.

2 reviews for Ninja Finger (Palmar Interossei) trainer

  1. Alex “Lex” Byrne (verified owner) –

    It feels really good, actually. This is my variation.

  2. marcusfriske30 (verified owner) –

    Awesome piece of gear! Very high quality build

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