- Scientific and safe triangular structure: the unique golden ratio triangle structure with 10 reinforcement rivets makes the adjustable hydraulic more resilient, which is a safer and scientific structure. Professional micro bounce that refuses to jump back to gain strength.
- Durable material: the solid and robust double layer steel tube material has passed resistance tests, is not easily deformed and broken. The core is a fully sealed hydraulic cylinder with simple structure and reliable operation.
- Adjustable power twister: Dnkerlar lightweight rebound bending dumbbell, adjustable gymnastic bar, arm muscle training device, which can adjust different resistances by turning the resistance button, which is more user-friendly than conventional spring arm power devices. It can adjust 10-200 kg, 22-440 pounds of resistance.
- Be stronger together: perform an arm strength training for shoulders, chest and upper body with this bicep trainer. Achieve firm and strong muscles in just a few minutes a day.
- Easy to use and easy to store: at the bottom of the handle there is a clasp that is very convenient for storage. When you open the packaging, hold the handle with both hands and open the clasp with the index finger to use it.