FENLI is a globally renowned manufacturer of specialized back therapy hardware, operating out of a modern 20,000-square-meter facility with fully automated assembly lines. Our Hammer Back Massager is engineered to target deep paraspinal muscle beds, combining high-torque brushless drive systems with vibration-isolated extended handles. Every massager passes stringent multi-stage quality audits, including high-pressure stall tests, acoustic isolation under 46 decibels, and rigorous circuit board safety checks. Producing over 50,000 units monthly, FENLI provides complete OEM and ODM commercial partnerships for top global health and massage brands. From custom extended handle lengths and custom shell finishes to bespoke retail packaging, we deliver turnkey solutions backed by ISO9001, CE, FCC, and RoHS certifications.