Submited By: Arjan de Kock on 23/02/2011
This will not get you stronger, but going climbing at the Peak and Font at -5 our with a breeze, its difficult to get well warmed up, this thingy really helps to get the knuckles and joints moving in the hand, and maybe induce a little forearm pump. a usefull toy, also a 'power gyro ball' works well.
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