Company description
It is a box full of small glass beads heated to a certain temperature in order to soften the plastic. This hot box is normally only found in a doctor's, in an actual doctor's office. In order to make adjustments to your plastic frame, if your frame seems to be sitting too wide which is generally what happens to the plastic frame from people pushing up on top of their head when they are not using their glasses, it has a tendency to cause the plastic frame to expand out like so.