Liberty Fitness Atlantic Series Abdominal / Back Extension Dual FunctionLiberty Fitness Systems presents the Abdominal Back Extension Dual Function unit. Two favourite gym exercises combined into the one effective item. User experience is enhanced by AAA commercial graded upholstery and padding along with ergonomically positioned handles and motion designed to be fluid throughout the exercise movement in working the back or abdominal muscle groups. Adjustment is simple with easy to follow, illustrative instructions