Features: This item can be used in pasting screen protector of mobile phones, which can avoid the possible bubbles between the protector and phone screen. When you stick the screen protector on your phone screen, then roll this useful pasting roller to flat the screen gently and make the glue between two screen spread equably and slowly. Nice assistance in fixing and pasting mobile phone screen protector, easy to use and high-efficiency, also for screen protector OCA adhesive and polarizing film pasting. It can move effortlessly on the phone screen surface, and it can help fix the screen protector to your phone screen firmly. Its roller is made of silicone material, which will not scratch and damage the phone screen. Easy to clean the dust on the roller surface, helping avoid the dust go under the film and adhesive. 10cm wide roller, which can covers any smartphone screen, like for iPhone 4/4s/5/5c/5s, for Samsung Galaxy S1/s2/s3/s4, etc.