{"product_id":"b0fc1rp5hs","title":"Twister Arm Trainer for Men \u0026 Women -【5.0 Upgrade】 30-270lbs Adjustable Chest Workout Equipment，Portable Home Gym Strength Training for Arms, Shoulder \u0026 Upper Body Muscle Building","description":"\u003cdiv\u003e\n\u003ch1\u003eAbout This\u003c\/h1\u003e\n\u003cul\u003e\n\u003cli\u003e【3-Point Custom Resistance \u0026amp; Progressive Upgrade】​​：Unleash targeted chest sculpting with our ​​exclusive 3-hole adjustment system​​—effortlessly switch resistance levels (40-150lbs) by aligning springs. Perfect for beginners progressing to advanced lifters. No more swapping equipment: conquer ​​weak points​​, build dense muscle, and outgrow standard 60-100lbs trainers.\u003c\/li\u003e\n\u003cli\u003e【360° Muscle Activation】​​：Torch your ​​chest, arms, shoulders, back, and core​​ in one motion! Patent-pending U-spring tech engages ​​7+ muscle groups simultaneously​​—maximize gains beyond basic arm trainers. Achieve chiseled definition 3x faster than isolated workouts.\u003c\/li\u003e\n\u003cli\u003e【Rugged Yet Silent Performance】​​：Military-grade ​​steel springs with leather armor​​ resist rust \u0026amp; deformation at max tension. Thickened ​​anti-slip foam grips​​ absorb vibration—train harder without joint strain or pinching injuries. Outlasts generic models with ​​10,000+ reps durability​​.\u003c\/li\u003e\n\u003cli\u003e【Portable Powerhouse】​​：​​Detach in 10 seconds​​: springs + handles fit in any bag. ​​Dominate workouts anywhere​​—office breaks, travel, or home. Compact size slides under beds. ​​Zero setup needed​​, unlike bulky gym gear.\u003c\/li\u003e\n\u003cli\u003e【Elite Biomechanics \u0026amp; V-Taper Builder】​​：Ergo-angled handles ​​isolate pecs​​ while dual-grip zones ​​blast biceps\/triceps​​. ​​Prevent imbalance​​ with force-distributed U-frame—no more shoulder strain. Your shortcut to a ​​wide-back, thick-chest physique​​ in 10 mins\/day.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch1\u003eOverview\u003c\/h1\u003e\n\u003cul\u003e\n\u003cli\u003eBrand : NST\u003c\/li\u003e\n\u003cli\u003eColor : Blue\u003c\/li\u003e\n\u003cli\u003eMaterial : Polyester\u003c\/li\u003e\n\u003cli\u003eMaximum Weight Recommendation : 150 Pounds\u003c\/li\u003e\n\u003cli\u003eControls Type : Push Button\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003c\/div\u003e","brand":"Corenfit","offers":[{"title":"Default Title","offer_id":58984484274257,"sku":null,"price":34.79,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/1010\/3934\/1649\/files\/61Csn9eonYL._AC_SX679.jpg?v=1769002696","url":"https:\/\/fitncore.com\/products\/b0fc1rp5hs","provider":"Fitncore","version":"1.0","type":"link"}