DAUZ Winter Heater Gloves Far Infrared Heating I tried putting batteries in and turning on the switch to check the product, but honestly, I didn't feel like it got that warm. I think you can just use them as gloves. Please understand the above before purchasing. Although it's difficult to see in the photos, I believe they are unused because they still have the plastic string that was attached to the tag. Size: L Color: Black x Gray Stored at home. Please refrain from purchasing if you are sensitive to used items. Other: ● No price negotiations. ● No smokers. ● No returns or exchanges. ● Please understand that these items have been in someone's possession before purchasing.