so the eneeling is good. buttarily on, we had this -- but early on we had this interesting product called tempering. it's a crazy thing. you heat the glass up again, and you cool it down really fast, and then all of a sudden it sets up strain patterns within the surface of the glass that makes it impact resistance. and when it breaks, whoa, it makes it into a thousand tiny little crystals. and so it's, at that time, a new product. unusual. since then, it's common. i mean almost all glass that we sell, other than table tops for windows, is tempered glass. >> do we have some regular glass we can take a look at. >> we do. >> i think we're all familiar with it. >> well, this is just your basic window pane glass. and -- >> and it can be cut to size. >> it can be cut, and quickly. so you're going to use this for, you know, small windows, and picture frames, things like that. >> you would not use that in what are considered hazardous locations in a door, or next to a door, next to a walking surface. >> window glass