Hydraulic Arm Exerciser for Upper Body TrainingThe fully sealed hydraulic arm exerciser system delivers smooth, stable resistance for maximum upper body training, especially targeting your arms, shoulders, and chest.Stable & Long-Lasting BuildBuilt for long-term durability, the arm exercise machine is equipped with double-layer high-density carbon steel and protective housing. The triangular frame and micro-rebound safety design enhance stability and reduce the risk of injury.Adjustable Arm Exerciser for All LevelsThis arm exercise equipment combines upper body strengthening and chest expansion in one device. The 220 levels (22440 lbs) of hydraulic resistance suit your personal training goals. Ergonomic & Foldable Design for HomeErgonomic PU handles are non-slip and wear-resistant. The foldable design and snap-lock system make this adjustable hydraulic arm exerciser ideal for home use or travel.