U-shaped Arm Strength Machine: U-shaped double fine steel spring
Looking to give your fitness routine a serious upgrade? Meet the U-shaped Arm Strength Machine—your new best friend for building arm strength and endurance without stepping foot in a crowded gym. �️♂️ At its heart? A U-shaped double fine steel spring that doesn’t just promise smooth rebound and consistent resistance; it delivers. And let’s talk about the foam wrapping—because who likes pinching or discomfort mid-workout? This stuff is dense, durable, and downright cozy. Whether you’re just starting out or you’re looking to push your limits, the three adjustable strength levels (30/40/50kg) have got you covered. Plus, with a thickened steel pipe holding it all together, this machine isn’t just sturdy; it’s practically indestructible. Ideal for home or gym, it’s the secret weapon every fitness enthusiast needs to conquer upper body goals. 💪
- Built to last with steel and foam—because flimsy equipment is so last year.
- Choose your challenge with three gears (30/40/50kg)—perfect for scaling up as you get stronger.
- Compact yet mighty at approximately 66.5 x 17.5cm, it fits just about anywhere.
Heads up: Slight variations in product dimensions and weight might pop up thanks to manual measurements. And yeah, colors might look a tad different on your screen—technology, am I right?
Features
- Foam wrapping for comfort
- Three levels of strength adjustment
- Thickened steel pipe construction
- Durable and does not clamp hair or flesh
- U-shaped double fine steel spring
General specs
- Seller: Sunsky
- ID: 3769163
- Material: Steel, foam
- Gear: Three gears (30/40/50kg)
- Size: Approximately 66.5 x 17.5cm
- First listed by seller: 4/24/25
If you are interested in more details, you can find full information on the seller's page.
Price History for seller Sunsky
| Date | Price |
|---|---|
| 4/26/25 | $6.83 |
| 4/24/25 | $6.80 |
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U-shaped Arm Strength Machine U-shaped double fine steel spring
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| Brand | WONDER CORE | Speediance | Speediance | Speediance | Sportneer | |
| Model | WCS-612 | GYM MONSTER 2 | 32" Gym Monster Max | GYM MONSTER 2 | Y23-82000-03-A | |
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| Rating |
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| Price | $6.83 | $99.99 | $4,499.00 | $2,899.00 | $3,749.00 | $26.99 |
| Seller | Sunsky | Amazon | Amazon | Amazon | Amazon | Amazon |
| Update | Apr 26, 2025 | Dec 6, 2025 | Dec 6, 2025 | Dec 6, 2025 | Dec 6, 2025 | Feb 7, 2026 |
| Material | Steel, foam | Plastic, Metal | Metal | Zinc Alloy | ||
| Weight | 78.0 | 187 lbs (85.00 kg) | 171 lbs | 1.30 | ||
