Pro Therapy Supplies, located in the metro Atlanta, GA area, is an authorized dealer for First Degree Fitness indoor rowing machines. First Degree Fitness has developed Fluid Technology to create Variable Fluid Resistance to allow fingertip control of adjustment from "Feather light" to "Olympic sprint". This patented Fluid Technology is at the heart of every piece of First Degree Fitness equipment, delivering silky smooth resistance to the user's effort and instantaneous response to input with no 'flat spots'.