ROADGIVE Glass Suction Cup Holds Well but Lacks Instructions

I like the fact that these suction cups come with their own individual cases. They are of a decent size so the suction cup area will cover more of a surface when you're needing to suction it to it. I like the fact that the case for each suction cup has a set of handles on it. As you can tell from the pictures there are two handles on top and when you're carrying them you can close the two handles together to create one thicker handle. It took me about four or five times to really get this suction onto a tile and onto a mirror because you don't get any instructions with the set. And if you're a novice like myself, a set of instructions would have been greatly appreciated. But once you do figure out how to give the suction cups to adhere to the surface that you're trying to move, the actual suction holds well. I didn't have anything that would be at the higher end of the heavier side for the suction cups to test their ability on, however I was able to test it on a 12"x12" porcelain tile and I was able to test it on a 16 inch by 24 in mirror that's about a quarter of an inch thick. As I stated at the beginning because I've never used these things before I was a little nervous about picking the items up using these suction cups but once I realized how secure it was I feel confident in picking it up and was fine with the overall performance. As I stated, as a novice to using the suction cups, I would have really appreciate it instructions because it was difficult for me to get the hang of using them. I also wish that the individuals cases that they came in were a better quality because they are very thin plastic and if you were to drop it it would be very easy for these cases to crack our break. The suction cup themselves I feel are really good quality. They're made of great material but I think will last a long time. So the things that I don't like about it are that it does not come with instructions and the poor quality of the cases. Those two things are what prevented me from giving this set five stars. If the quality of the cases were better and if it came with instructions I would definitely have given this set five stars. Other than that I would definitely recommend the suction cups to anyone who's looking for some because these are of a good quality and you really can't beat the price especially for two of them.