Doing crunches and sit-ups using foot straps for control on the Portable ABMat has never being easier.

Abdominal Strap

Ab Roller Vs. Planks: Evaluating Core Strengthening Methods – DMoose

Sit up Exercise Equipment for Home Workouts,Sit Up Bar for Floor with Foot Holder,Abs Workout Equipment,Sit Up Assistant Device,Ab Crunch Machine,Sit up Foot Anchor with Rubber Suction Cup,Black : Sports

Crunches vs Sit Ups: which one is best and how to do it

Crunches vs Sit Ups: which one is best and how to do it

Buy Fitness Attitude Portable ABMat Online at Low Prices in India

What exercises can I do at home to build muscle? - Quora

How To Fix Rib Flare Posture And Avoid Pain While Exercising – DMoose

Page 57 – Garage Gym Reviews

Bed Sit Up Assistant Bar Adjustable Strap Door Mattress Crunches Abdomen Trainer Portable Lightweight Fitness Equipment