Hands-free & Use Anywhere - With long, weighted chest cover balance the back to prevent sliding, secure around neck and shoulder, and hands-free application thanks to the 2 adjustable snap fasteners on the front, all this keeps it in place and free your hand. So it can be used sitting, lying, standing, even walking, great for home use or whenever and wherever you need. Flexible & Leak Proof - Double sealing to improve durability and prevent leakage when frozen, and small grid gels keep flexible and conforms to your body’s natural shape to provide better contact, penetrating deeper cold/heat to targeted areas for fast recovery. Large Coverage & Comfort Fit Design - The large gel coverage with ergonomics design perfectly contours to the shape of your neck, shoulder, upper back and chest for the most comfortable fit and maximum relief. Microwavable heating pad for neck shoulders and back featured with high collar and wide shoulder filled with weighted gel to provide pressure for deep tissue stimulation. Individual Thicker Gel-Stay Cold & Hot Longer – VILOGO cold pack/heating wrap contains 24 individually wrapped thick gel packs, provide 40% more gel than others', which keeps ice packs cold/hot longer. The reusable gel ice pack is made from medical grade liquid gel with a premium soft plush lining cover, skin-friendly, can be applied directly to your skin without a cloth, and prevent sweating or cold injuries. Cold & Hot Therapy & Instant Pain Relief - Multi-use cooling pack & heating pad provides hot and cold compress to reduces your aches and swelling, effectively relieves aches, sprains, inflammation, stiff necks, relaxs sore muscles,aching joints, speeds up recover after surgery, and treats injuries such as neck pain, shoulder pain, back pain. Takes 90 mins to freeze and heat up in microwave for 20 secs.