Glass Aid is a 10 mil thick protective cut resistant strip that is meant to protect the glass from your knife. It’s white color make it easy to see through even the darkest of films. It’s flexible construction allows it to easily be formed around corners and it is heat resistant so it won’t melt during shrinking. Glass Aid is also designed to remove cleanly so you don’t have to worry about leaving adhesive behind when you remove it. This product is perfect for beginners and pros alike.