Add a compact strength-training tool to your routine. This U-shaped spring arm trainer is designed for upper-body exercise, with a steel spring, iron-core tube, and NBR foam components. Choose the Black/Blue or Black/Red version to match your workout setup.
Product Highlights
Spring-type trainer: A hand-held tool for arm and upper-body exercise.
Supplier strength label: Both options are listed as 30–40 kg; the supplier has not specified how this rating is measured or whether resistance can be adjusted.
Product Details
Type: U-shaped spring arm strength device
Materials: Iron-core tube, steel spring, NBR foam
Colors: Black/Blue; Black/Red
Variant label: 30–40 kg arm strength level
Keep it close to your workout area for short, deliberate training sessions. Start with a comfortable range of motion and focus on controlled repetitions rather than forcing the spring.
⚠ Important Safety & Care Instructions
Inspect the spring, tube, grips, and joints before every use. Stop using if any part is bent, cracked, loose, or damaged.
Grip securely and keep fingers, hair, and clothing clear of moving or pinching points.
Use controlled movements; do not release the handles suddenly or point the device toward another person.
Do not exceed a comfortable range of motion. Stop immediately if you experience pain, dizziness, or loss of control.
Use in a clear space away from children and pets. This is exercise equipment, not a toy.
Wipe the grips and frame with a soft damp cloth, then dry completely. Do not immerse the spring or store the device while wet.
Store in a dry place away from extreme heat and moisture.
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