Popular uses are dent removal on cars. Here are some tips for this usage: Method 1: Press the suction cup against the dent and activate the vacuum, then pull. Method 2: Heat the bottom of the suction cup with a hair dryer before pressing it against the dent. With strong suction, it can play a good role in car dent removal Large contact area, better effect Mater ail: plastic + rubber Color: yellow Size: as the picture shows