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| Greenmaster's HYDRA SUSPENSION™ is a unique deck cushioning system that utilizes adjustable gas filled cylinders to absorb impact during your workout. Rubberized adjustment dials allow runners and walkers to comfortably customize the amount of deck support to suit their own preference. Each cylinder is manually adjustable to 12 levels. |
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| Soft grip dials make adjustment comfortable. |
Dual cylinders ensure consistent support. |
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