Anti- slip gel pads black about cell phone pads,sticky anti-slip gel pads, can stick to glass, mirrors, whiteboards, metal, kitchen cabinets or tile, car GPS and many more universal sticky pads - Good quality gel pads with extra thick gel. Great for cell phones, GPS, garage door openers, golf carts, boats, speakers, or around the house. Secure object to your dashboard or console. At home also we found it a lot of magical effect. Use dust or oil from your hands to lower the tackiness on the phone side if necessary. Clean with soap and water to renew stickiness. Easy to use the included alcohol pad to clean your dash. As with any gel product, avoid extreme hot conditions. Instructions: First tear off the protective cover in the surface of the gel pad when using. Then put it in a proper place, press for a few seconds and release when it's firm. Last fix the object on it, also press for a while to make sure it's well fixed before letting go. Normally one piece is enough for one object, but you may need more if it's heavy and big its stickiness will be affected if the place or object with wetness,unevenness, dirts, dust and times of recycling. Attentions: Do not put in the place where children under three years old can touch. Dot not use in the place where of automobile is located. Do not use in the surface where the paints falls off easily or paper wall. Do not use in the place with temperature is higher than 80 degree.