The Dual Pane consists of a 1” laminated glass unit, extremely hard to break. The common annealed glass is easy to break. Tempered glass, though stronger, can also be shattered by applying great force. If broken at all, laminated glass behaves very differently: it has a vinyl interlayer which stays in the frame, allowing the fragments of glass to adhere to it. With this adherence, a stronger barrier against forced entry is provided, since now the glass cannot be cut from just one side. Glasscutters are hence rendered useless.