551" EXTENDED HEATING COIL, SUPER HEATING EFFECT! With a heating coil length that is 150% of ordinary heating pads, Lenmen achieves faster heating and a wider, denser heating area. The result is heating quickly distributes evenly across every corner of the pad within minutes, ensuring no place is left unattended. The long work makes you feel the world's weight seems to settle on your shoulders. Urgently seeking relief for sore and stiff shoulders? Look no further than this neck heating pad! GRAPHENE-INFUSED, HEAT PENETRATES DEEPER! Lenmen shoulder heating pad adds Graphene material into the fabric by AdvInfuse technology, fully unlocking the remarkable thermal properties of Graphene. When heated, graphene releases infrared rays similar to the human body. This means heat doesn't just spread evenly throughout the skin but penetrates subcutaneous tissues to reach and relax deeper muscles. Get ready to experience a more effective soothing and take your heat therapy to the next level! 30% HEAVIER, LARGER, ALL FOR OPTIMAL COMFORT! It’s time to leave behind those stiff, ill-fitting heating pads! Lenmen not only offers an enlarged design but also adds warm, weighted beads across the whole upper back, providing broader coverage and a more comfortable fit. Unlike blankets with single-direction wiring, we combine vertical and horizontal wiring for denser, more even warmth while staying soft enough to wrap naturally around your back, waist, legs, and arms. Enjoy cozy comfort while the rest of the world shivers!