Safe reamers for PVC doors and windows enforce the entrances in the area of the hinges or in the handle area and protect your home against burglarizing. We recommend them to people living on the first or last floors because breaking in through the windows is very easy (8-10 seconds) with only a screwdriver and completely noiseless. Reamers are a good investment for anti theft protection. They are the cheapest and most reliable way to ensure your balcony door is never broken into.