Features: Make from Polyester materials, you will never feel too stuffy or tight and it helps ankle stress relief. Our ankle heating pad provide deep penetrating heating effect, which focuses on the ankle instead of the whole foot. With adjustable strap, and can adjust it to fit the ankle and foot. It is firm and not easy to slip from your feet. Great for ankle injuries. Excellent gift for anyone seeking foot comfort, making them a great and practical present for friend or family. Specifications: Materials: Polyester Style: without sock/with sock Adjustable ankle range: about 5-10cm/1.97-3.94inch Adjustable foot range: about 9-15cm/3.54-5.91inch Package Includes: 1pc Heated Ankle Wrap note: Please allow 1-2cm errors due to manual measurement, make surely that you not mind before order. Due to difference between different monitors, the picture may not reflect the actual color.