We love these elbow sliders so much, we had to offer them to our customers! They are sold with an adhesive backed Velcro, so they are easy to install. Wiz recommends that you sew on the Velcro patch and is not responsible if you do not and you loose your slider. The Velcro bond is super strong. You’ll have a tough time getting the slider off once you attach it! We carry the sliders in black, red, white, red/white/black multi color, orange and pink. They will be shipped free via First Class Mail.