{"product_id":"adjustable-spring-grip-strength-bar","title":"Adjustable Spring Grip Strength Bar","description":"\u003cdiv id=\"offer-template-0\" style=\"max-width: 100%; width: auto;\"\u003e\u003c\/div\u003e\n\u003cp style=\"max-width: 100%; width: auto;\"\u003e\u003cstrong\u003eOverview\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp style=\"max-width: 100%; width: auto;\"\u003eAdjustable resistance - Five-level or three-level resistance options for progressive training\u003c\/p\u003e\n\u003cp style=\"max-width: 100%; width: auto;\"\u003eCarbon steel construction - Durable material ensures long-lasting performance\u003c\/p\u003e\n\u003cp style=\"max-width: 100%; width: auto;\"\u003eArm and chest focus - Specifically designed for upper body muscle development\u003c\/p\u003e\n\u003cp style=\"max-width: 100%; width: auto;\"\u003eErgonomic handles - Comfortable grip for safe and effective workouts\u003c\/p\u003e\n\u003cp style=\"max-width: 100%; width: auto;\"\u003e \u003c\/p\u003e\n\u003cp style=\"max-width: 100%; width: auto;\"\u003e\u003cstrong\u003eSpecifications\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp style=\"max-width: 100%; width: auto;\"\u003eMaterial: Carbon steel\u003c\/p\u003e\n\u003cp style=\"max-width: 100%; width: auto;\"\u003eResistance range: 20-70kg (multiple options available)\u003c\/p\u003e\n\u003cp style=\"max-width: 100%; width: auto;\"\u003eAdjustment types: One-click five-level or press-type three-level\u003c\/p\u003e\n\u003cp style=\"max-width: 100%; width: auto;\"\u003eColors: Gray, Red\u003c\/p\u003e\n\u003cp style=\"max-width: 100%; width: auto;\"\u003eProduct type: Spring arm strength device\u003c\/p\u003e\n\u003cp style=\"max-width: 100%; width: auto;\"\u003e \u003c\/p\u003e\n\u003cp style=\"max-width: 100%; width: auto;\"\u003e\u003cstrong\u003ePacking List\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp style=\"max-width: 100%; width: auto;\"\u003eSpring grip strength bar*1\u003c\/p\u003e\n\u003cdiv style=\"max-width: 100%; width: auto;\"\u003e\n\u003cimg style=\"display: block; height: auto; max-width: 100%; object-fit: contain;\" src=\"https:\/\/oss.teemdrop.com\/goods-admin\/2026\/06\/11\/3b03a1b0-87a9-4e50-a08b-76f54815a7f3.jpeg\" usemap=\"#_sdmap_0\"\u003e \u003cimg style=\"display: block; height: auto; max-width: 100%; object-fit: contain;\" src=\"https:\/\/oss.teemdrop.com\/goods-admin\/2026\/06\/11\/d8a6a48b-da91-4dd0-bbfc-e48711180a68.jpeg\" usemap=\"#_sdmap_1\"\u003e \u003cimg style=\"display: block; height: auto; max-width: 100%; object-fit: contain;\" src=\"https:\/\/oss.teemdrop.com\/goods-admin\/2026\/06\/11\/28aa17af-ac25-4301-a1d3-cffd10bdf73f.jpeg\" usemap=\"#_sdmap_2\"\u003e \u003cimg style=\"display: block; height: auto; max-width: 100%; object-fit: contain;\" src=\"https:\/\/oss.teemdrop.com\/goods-admin\/2026\/06\/11\/2db9bd88-77e3-480b-982f-3f6b1f4b23cb.jpeg\" usemap=\"#_sdmap_3\"\u003e \u003cimg style=\"display: block; height: auto; max-width: 100%; object-fit: contain;\" src=\"https:\/\/oss.teemdrop.com\/goods-admin\/2026\/06\/11\/c8627a6e-90ee-4cbc-8867-49f279ac8c7c.jpeg\" usemap=\"#_sdmap_4\"\u003e \u003cimg style=\"display: block; height: auto; max-width: 100%; object-fit: contain;\" src=\"https:\/\/oss.teemdrop.com\/goods-admin\/2026\/06\/11\/3fff8b0b-7fc4-4cd4-87e1-b8316a1ef40c.jpeg\" usemap=\"#_sdmap_5\"\u003e \u003cimg style=\"display: block; height: auto; max-width: 100%; object-fit: contain;\" src=\"https:\/\/oss.teemdrop.com\/goods-admin\/2026\/06\/11\/9b383b08-700b-41bc-a08d-8f8b72e86894.jpeg\" usemap=\"#_sdmap_6\"\u003e \u003cimg style=\"display: block; height: auto; max-width: 100%; object-fit: contain;\" src=\"https:\/\/oss.teemdrop.com\/goods-admin\/2026\/06\/11\/48680837-8659-45d5-889f-cc1d6898a47d.jpeg\" usemap=\"#_sdmap_7\"\u003e \u003cimg style=\"display: block; height: auto; max-width: 100%; object-fit: contain;\" src=\"https:\/\/oss.teemdrop.com\/goods-admin\/2026\/06\/11\/4fa39b74-8b2b-4c9e-9e69-2c5ae2c9214e.jpeg\" usemap=\"#_sdmap_8\"\u003e \u003cimg style=\"display: block; height: auto; max-width: 100%; object-fit: contain;\" src=\"https:\/\/oss.teemdrop.com\/goods-admin\/2026\/06\/11\/b2fc75bd-12dd-44e9-bd9b-6f8ebebb3648.jpeg\" usemap=\"#_sdmap_9\"\u003e \u003cimg style=\"display: block; 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