Waste of money
Followed instructions even washing window with alcohol. Left on for 24 hours and it didn't stick. Reapplied as instructions said in step 5 kept rubbing with a card to make it adhere but still didn't and fell off the window making it useless.  Cool concept but major fail in quality. Says it has a 5 year guarantee. If it's replaced I'll adjust my review. Until then don't buy with this company!
Rating: 1 stars