I use four stars or higher, but I only purchase authentic things! It comes packaged in a box that features a QR code that can be scanned to validate that the purchase is authentic. Got pros: Silicone is a medical material, it does not have shwof on it, and it prevents the face from rubbing during an operation. Having this drawback: The locking mechanism on the neck is rather flimsy. It's possible that it'll fall apart after prolonged use.