Novel Acuflex I®. Second generation of Trunk Flexibility Tester. Compensates for variables in arm and leg lengths. Features of this unit include: Maximum reach indicator. Foot plate for greater accuracy. All-steel construction. Adjustable tension on reach indicator. Complete instructions. Scales that read in inches and in centimeters. One-year limited warranty. Designed to do the modified sit and reach test but can do the old sit and reach test too.