{"product_id":"adjustable-spring-arm-strengthener-bar-for-fitness-training","title":"Adjustable Spring Arm Strengthener Bar for Fitness Training","description":"\u003ch3 style=\"width: 100%; height: auto;\"\u003eOverview\u003c\/h3\u003e\n\u003cp style=\"width: 100%; height: auto;\"\u003eAdjustable Resistance: One-click mechanism for 5-level spring pressure adjustment (20-70kg range), catering to beginners to professionals.\u003c\/p\u003e\n\u003cp style=\"width: 100%; height: auto;\"\u003eDurable Material: Carbon steel construction ensures longevity and consistent performance.\u003c\/p\u003e\n\u003cp style=\"width: 100%; height: auto;\"\u003eErgonomic Design: Comfortable grip and compact form for effective arm and upper body training.\u003c\/p\u003e\n\u003cp style=\"width: 100%; height: auto;\"\u003eVersatile Use: Suitable for home gyms, fitness centers, and rehabilitation exercises.\u003c\/p\u003e\n\u003cp style=\"width: 100%; height: auto;\"\u003e \u003c\/p\u003e\n\u003ch3 style=\"width: 100%; height: auto;\"\u003eSpecifications\u003c\/h3\u003e\n\u003cp style=\"width: 100%; height: auto;\"\u003eMaterial: Carbon steel\u003c\/p\u003e\n\u003cp style=\"width: 100%; height: auto;\"\u003eResistance Range: 20-40kg (beginner), 30-50kg (advanced), 50-70kg (professional)\u003c\/p\u003e\n\u003cp style=\"width: 100%; height: auto;\"\u003eAdjustable Levels: 5 spring pressure settings\u003c\/p\u003e\n\u003cp style=\"width: 100%; height: auto;\"\u003eColors: White, Red\u003c\/p\u003e\n\u003cp style=\"width: 100%; height: auto;\"\u003e \u003c\/p\u003e\n\u003ch3 style=\"width: 100%; height: auto;\"\u003ePacking List\u003c\/h3\u003e\n\u003cp style=\"width: 100%; height: auto;\"\u003eArm strengthener bar*1\u003c\/p\u003e\n\u003cdiv id=\"offer-template-0\" style=\"width: 100%; height: auto;\"\u003e\u003c\/div\u003e\n\u003cdiv style=\"width: 100%; height: auto;\"\u003e\n\u003cimg src=\"https:\/\/oss.teemdrop.com\/goods-admin\/2026\/08\/10\/4c01836e-96c5-4f67-b821-7d2913f428ad.jpeg\" object-fit=\"contain\" style=\"display: block; 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