My husband picked up a used, but in very good condition large window (5'x5') for a home improvement project. He had been told by many people that you need glass window handle hooks to move large windows successfully. Since we are using a lot of windows this season, I decided to get a pair. After reading all the fantastic reviews, but only finding a few with regards to our needs I went ahead and purchased them. Most reviewers had glowing things to say, but they wrote about laminated floating floors or other uses. But I was nervous about how well they could truly hold a huge and quite heavy thermal pane window. I knew I'd be helping my hubby with the other end. (Yikes) Long story short, we moved the window from it's vertical spot in our trailer, to it's new temporary home in our gazebo, until we are ready to install it permanently. As heavy as the window was, we moved it quite a ways with only 2 brief pauses to catch our breath and the FCHO glass suction handle hooks worked perfectly. I was nervous the whole way hoping the suction would not let us down, as this was a large window and would have been a disaster to drop! So we are very pleased with our purchase and will be using them quite a lot as we have 3 other windows (and counting) left to install this summer, and numerous glass insert doors too. Best innovative product I've purchased in a LONG time!
Update: we just installed a custom made 47" x 55" window glass ourselves. Custom glass is NOT cheap and again, I was a tad nervous about carrying this big window over to its designated framed in spot. But no worries, the Echo suction handles worked once again flawlessly. These suction handles are really incredible.

These seem to work as well as the Yellow version. I'm not sure why they are sold as a separate product but you can see my review comparing this to the FastCap version under the Yellow version of this suction cup. I have both the Black & Yellow FCHO versions and both work the same.

I buy these every year to use as external handles on my Sliding Glass Doors. The doors themselves only have a spot to open with your fingers, very difficult with heavy older sliders. I replace every year as I am on the ocean and the hardware gets rusty. They still work but I replace for cosmetic purposes! Love these!

Only boxes for one specific project, a shower glass panel installation. It's a rather large piece of glass, 32 inches wide by 78 inches tall. Very tough to manage without some type of handle on it. So I decided to get these and hoped for the best. Very impressed by the suction , as well as reliability. I was worried that the suction cups would initially bite on the glass, however they would slip off while I was moving the glass most likely causing it to shatter. I actually left the suction cups on the piece of glass over a few days, and they were still holding perfectly strong on the glass. No way I would've been able to install this class without the suction cup handles. Even if for one project, they pay for themselves. Love these handles.

I have purchased four of these. They have great suction cups. My dad uses one in his bathroom that stuck to the fiberglass wall in the shower and has never released yet and it's been up for three months.
I use the other ones on the boat that I've made some surf Gates with, and they never fall off the boat. I've only had one suction cup fail, But I would definitely order them again