What angel least 15 degrees for a bowler?

..... simple when a bowler is bowling, the arm should not bend over 15 degrees after the arm passes over the shoulder. otherwise it will be called the torque

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NEW JUICY COUTURE Sport Couture Ellie Bowler Small YHRU2875 ANGEL 117 NWT    US $142.99

Juicy Couture Sport Couture Ellie Bowler (Small) Angel $142.00 Removable canvas strap. Two internal pockets. . Handle Drop 2.4" L 9" x W 6" x H 8.5" Shoulder Drop 16"...