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JAS devices provide Static Progressive Stretch (SPS) therapy to safely and efficiently restore joint range of motion. JAS brings clinic-quality therapy to the home setting and achieves results sooner than alternative stretching devices.

Proven effective with just 90 minutes daily use.
You control the degree of stretch to assure safe, pain-free therapy.
Requires 7 to 10 weeks of use compared to 12 to 26 weeks with other systems, documented in several published studies.