The Encyclopedia of Glute (Booty) Building 70+ Exercises - Part 4
У вашего броузера проблема в совместимости с HTML5
http://www.VigorGroundFitness.com
The last part of the 4-part series completes over 240+ glute building exercises.
Don't think I need to add much more to the description other than - go work your glutes and report back!