Device for exercising one's thighs and buttocks

An exercising device upon which one kneels and can exercise one's thighs and buttocks by pushing one's knees away fro...

An exercising device upon which one kneels and can exercise one's thighs and buttocks by pushing one's knees away from each other in a direction substantially parallel with a line through one's hip joints has a pair of longitudinal swing arms that...