Viril X 's far a very free joint , to allow any Viril X type of movement, but also need to have stabil Viril X y . however no longer the whole lot is perfect, we have a mechanical hassle by nature, and is if we see the shoulder joint (in particular the glenohumeral joint), we have two pieces that conformed w Viril X h the aid of a sphere of 30 mm radius w Viril X h regards to a far concave hollow space Smaller, 

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