[English] According to Yuri from Pythongrip.com:
I would like to share with IronArm.net visitors this huge spring “THE BEAST”. Very cool and interesting piece of equipment. During the exercise with “THE BEAST,” your body needs to mobilize a lot of many motor units in. There are 3 levels of spring resistances with 10.00 mm, 11 mm, and 12.00 mm wire diameter. If we want to compare them to hand grippers, of course this is just “metaphor”, we might rate them as COC 2 / COC 3 and COC 4.
“…. is not just for the show to intimidate other folks “
– for start movement (180 degrees between the handles) you need explosive power skills and, of course, very good wrist!
– between 150-90 degrees it is the similar work like in “side pressure” training , you need a good tendons,the spring in this stage “shoots” in the elbow and shoulder joints.
– from framed “U” spring (0 degrees ) you are able to touch ( -…. degrees) with handles just if your chest muscles (and little bit of back) are strong enough.
IRONARM.NET 
Thanks a lot for your kind and fast response.
Your friends from ” Python Grip” Israel !
“Pythongrip” is a very high quality manufacture of reviews of the “iron grip” VKontakte from Russia, following grippery I will buy Pythongrip (I have a complete set of CoC), it gives me pleasure to look at even just an image Python grip in the photo.
how do i order the twister?
Please visit http://www.Pythongrip.com to order one. :-)