Gray Apple Smart Watch Band - XLWith the new Reliefband Sport Smart Watch Connector, users can connect their devices to an Apple Watch.Specifications:Color: GraySize (XL): Fits Wrists 5 in. - 10 in.How to UseFind the starting area on the wrist. Using either wrist, the correct area is in between the two tendons on the underside of the wrist – two finger widths from the first crease in the wrist.Clean the area first. Apply a small drop of gel and spread it in a circle about the size of a large coin with an even sheen.Place the device over the gelled area and fasten the device snugly. Press the power button to turn on the device. Starting at power level 1, increase stimulation until tingling is felt in the palm and middle finger at a comfortable level. Press the power button for 3 seconds to turn the device off.