These workout stickers are made of 100 percent, heavy duty, ultra thick, UV resistant vinyl. You can use them on laptops, water bottles, hydroflasks, chromebooks, or anywhere else you would stick a sticker too. These funny fitness stickers have these sayings: - I workout to burn off the crazy - I wear black when I workout. It's like a funeral for my fat. - Oh my quad - Let's do this - Mind over matter - Sore but worth it