Honestly not bad, I was skeptical because obviously they aren't the materials that we all desire.But considering the fact of craftsmanship on these are very impressive hands down.Stones are actually studded in frame unlike other companies that say they are "studded in" but actually glued.So props for the craftsmanship on this set.To get them fitted on wasn't hard, came with instructions pretty self explanatory (I wish I'd had made a clip on how I did mine. Maybe I'll do one on a next order from top grillz)Bottom mold was first try success, top I had to do a couple of times but it's easy to fix if you mess up don't worry. Cut off excessive adhesive, place it on where it needs it and use hot water again.*Don't use the plastic tongs (well if you must) not the greatest grip strength and annoying when dealing with hot water.* Don't use cup...(well if you must) I'm just saying with the tongs I was given there was not enough length to separate you from the water when trying to get a obsolete grip strength when dealing with hot water...If there's a lesson to be learned- you heard it here lol.*Use a bowl or something with girth that can handle hot waterOverall 5 out of 5 for what they are, I'm happy with purchaseEveryone's mouth and teeth are different, so these won't fit out of the box. Take your time and bend to fit your teeth. I don't use the wax I actually used moldable plastic and made a mold so this way they fit almost perfect.I am hooked got fitted for a custom set I'm waiting on now. I got these to go with a Halloween costume now I keep the bottom in most of the day. These are big, like tall they go over my teeth and some of my gums might want a different set for small teeth. Came in perfect, after almost 3 months of daily use 2 stones fell out of the top, I tried just for replacement stones because well that's going to happen. They replaced top and bottom with a whole new set had that in 2 days. Great seller, I don't think you can beat these unless you get a real custom fit grillGreat product!! Supper easy to use.. I started by fitting just the grill around your mouth first. When I got it to a basic form .. I put the plastic piece in the grill , hot water (not to long , it will melt the plastic) put it in my mouth to form it .. than wore it a little while , pushing and bitting down ..making adjustments.. .. than I heated water again and dropped in again .. the second time I was able to really get a good mold of my teeth around it .. to the point , where I was able to speak with it in and drink water..The top look goofy as sin, but I only wear the bottoms anyway. Love itHe was so happy and they are adjustable comes with instructions on how to install I think they look better with only 1 grill in at a time and he also agrees. Ps I zoomed in on the picture because he didn’t want his face on here lolI’ll fittingFits my teeth perfect but its kinda big, these get ALL the attention, everybody I talk to is tripped out like I'm a celebrity, I Recommend!I love the looks and perfect for dressing up in costume or for fun, but the fit and feel is horrible. Can't get them to fit properly and even following directions perfectly they don't work as the more older school grillz we're.