Ulysses Press 7 Weeks To 300 Sit-ups: Strengthen and Sculpt Your Abs, Back, Core and Obliques by Training to Do 300 Consecutive Sit-Ups

Descripción

Ulysses Press 7 Weeks To 300 Sit-ups: Strengthen and Sculpt Your Abs, Back, Core and Obliques by Training to Do 300 Consecutive Sit-Ups