Diamond Design Spokee Reflective Stickers for Wheelchairs. These high-quality reflective stickers are made in the USA from the same material from 3M that is used in making road signs. They are rated for a 7 year outdoor life and will really help you to stand out after dark. While not intended to replace proper safety lighting, these stickers will provide you with extra visibility in dusk and dark situations - making it easier for you to be seen.