Fitness
Windshield Wipers: From Wall Bridge starting position, extend legs straight up against wall so body forms an L. Inhale and slowly lower left leg down wall like a clock arm toward 9 o'clock; exhale and return to start. Repeat with right leg, sweeping toward 3 o'clock. Do 2 sets of 10 slow reps.
Source : http://www.prevention.com/health/fitness/strength-
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