Improve muscle definition and strength by effectively engaging deep muscle fibers for welldefined lines and a sculpted upper body. Easy to use with adjustable hydraulic resistance: choose from multiple levels and smoothly transition between weights to accommodate users from beginners to elite athletes. Stable and safe workouts: a closed cylinder design combined with a triangular base provides sturdy support for longer, focused training sessions. Comfortable grip and adjustable handling: handles can be positioned with double thickness and non slip surfaces for a secure, comfortable hold during training. Key attributes Function: arm trainer for upper body strength and toning. Compatibility and size: suitable for a wide range of users due to adjustable resistance and handle positions. Construction features: closed cylinder structure, triangular base for stability, adjustable handles with non slip grips. Performance: smooth hydraulic resistance with stable, controlled motion for effective workouts. Usage scenarios At home upper body routine: perform a 15 to 20 minute workout focusing on arms, shoulders, and chest, adjusting resistance as needed. Progressive strength training: gradually increase resistance across sessions to build from beginner to higher levels. Circuit training: integrate into a mixed routine with other equipment to enhance overall upper body endurance and strength.