Healthsmart Vivi - Relax a Bac Scarf Wrap is a hot/cold therapy product for sore muscles, joint pain, and more. The unique shape is great for use around the neck, shoulders, arms, legs, knees, or back. This wrap can be microwaved for moist heat relief or put in the freezer for a cold compress. It is filled with clay beads that maintain temperature longer than other materials. The beads are sewn into small pockets, preventing them from falling to one side. This extra-heavy wrap comes with a soft, machine-washable cover with a waffle weave. There is a handle on each end of the wrap that makes it easy to position and move.