Products of CDC Labs

7 Weeks to 300 Sit-Ups 1.0 CDC Labs 

Mobile \ Health & Fitness

This app is the Official Companion to "7 Weeks to 300 Sit-Ups" by fitness author and certified personal trainer Brett Stewart. *. Free download of 7 Weeks to 300 Sit-Ups 1.0, size 3.88 Mb.