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• 【Ergonomic 45° Curve Design】Prolonged head bowing, sitting for long periods, poor posture, and stiff necks often cause neck and shoulder pain. The 3ZeBra C-shaped neck stretcher is designed to match your neck’s natural curvature at a 45-degree angle, offering three-way stretching for spinal alignment. Simply lie down and let gravity gently stretch and decompress your neck discs, ensuring safety as it stretches under gravity’s influence rather than external force.

• 【Wireless & Lightweight】No need to be tethered to power sockets while stretching. Rechargeable via USB Type-C, with one full charge lasting for 60 minutes. Operable without a power cord, offering instant relief from neck and shoulder pain. Weighing just 16.4 oz, it’s effortless to carry and store.
• 【Adjustable Instant Heat & Enhanced Heat Conduction】Offers 3 temperature settings, each indicated by a different light: 100.4°F / 38°C (Green Light), 105.8°F / 41℃ (Blue Light), and 111.2°F / 44℃ (Orange Light), the soothing warmth enhances blood flow, relaxes neck and jaw muscles, alleviates pain, and tackles neck hump problems. Unlike conventional heat-conductive metal plates, we employ a superior heat-conductive plate design. **For safety, it automatically shuts off after 15 minutes.
• 【2-in-1 Effective Stretching】Dual-use for both long and short lengths, offering two stretching angles. Short stretching is suitable for beginners, while long stretching is suitable for advanced users. Heat effectively relaxes deep muscles, while the four convex bars aid in loosening stiff muscles. This facilitates effective stretching for relaxation, contributing to the restoration of cervical spine health.