Sandpoy Twister Arm Trainer, 40-100lb Adjustable Chest Workout Equipment, Portable Chest Trainer for Men, Detachable Resistance Power Twister Bar for Home/Travel

Full-Body Muscle Activation - The twister arm trainer targets chest, arms, shoulders, back and core. Rotational motions engage small muscle groups for functional strength and V-taper sculpting. Replace 3+ gym machines with 1 chest workout equipment.

Adjustable Resistance System - Customize intensity via detachable springs on this chest trainer for men. From rehab (40lb) to pro-level (100lb). The arm workout equipment is perfect for all levels and grows with your fitness journey.

Durable & Ergonomic Design - High-tensile steel springs with leather armor protect against rust/pinch injuries. Anti-slip foam handles absorb sweat for intense chest workout sessions. Engineered for 10,000+ reps - the last chest expander you'll buy.

Portable Gym Anywhere - Detach and store the chest expander in backpacks. 10-minute sessions, 4x/week replace gym routines. Train at home, outdoors or travel - replace bulky chest machine​setups effortlessly.

Scientific Muscle Sculpting - Eliminate muscle imbalances with rotational arm twister exerciser motions. Unlike traditional power twister bars, our chest trainer activates stabilizer muscles for symmetrical V-taper chests and injury-proof shoulders.