If you want a way to kick up your ab workout without adding more sit-ups to an already dull exercise routine, then an ab toning belt is the best way to
UF PRO® Waist/Flex Belt Clip
THE FLEX BELT, Weight Lifting Belts - Canada
Ab Flex ab toning belt review
THE FLEX BELT, Weight Lifting Belts - Canada
ABS, ABS, ABS Flex Belt Review by Keaira LaShae on Vimeo
The Flex Belt Abdominal Toning Belt System with Kerstin Lindquist
THE FLEX ARMS Accessory Pack - Bicep and Tricep Muscle Toner (requires THE FLEX BELT Controller - sold seperately), Black, One size fits arms 10 to 19.5 : Sports & Outdoors
Flex Belt Review (Does This Really Work?!)
Wrap Around Flex Snake Chain Belt – Ettika
The Flex Belt Abdominal Muscle Toner , Black, 24-47
Flex Belt Review