CONBOLA Suction Cup Hooks Heavy Duty 4 Pieces Car Camping Essentials Upgraded Tie Down Suction Cup Camper Accessories with Securing Hook Strong Power for RV Boat Window Glass Camping Trap.(4 pcs)

Fantastic! Stayed stuck for 2 weeks and still going strong! The suction is VERY strong, it takes Hercules to pry them off, and that's a good thing. These are NOT wimpy things that will come loose and fall of in a few minutes like all the others I've tried. I stuck them on the inside of my SUV's windows in the cargo area and attached bungee hooks and cargo netting pulling on them with a LOT of weight, 150 pounds of stuff pulling against them. It was asking a lot of them to hold that much weight & pressure with the straps pulling tightly on a long 2000+ mile week-long road trip. But they held perfectly! What a nice surprise they never came off even once, not loose at all, those babies were stuck and not going anywhere. I have not tried them on other surfaces but for clean glass in your car even with temp changes it holds incredibly strong!UPDATE: They are STILL stuck tight after ONE MONTH! I finally took them off and it was hard to pry them off, as in very hard, but that makes them good. One thing you will want to do is make sure you keep the plastic caps they come with covering the suction cups, as you will need to put them back on over the cups when you take them off whatever they were stuck to. This is because the inside of the cups are sticky with an adhesive type surface and without the covers they would get covered with stuff immediately and that would surely hurt their sticking next time you use them. So keep those caps, they are attached but if you cut them off like I did, make sure you keep them!

These CONBOLA suction cup hooks are an absolute game-changer for car camping! The upgraded design and securing hooks provide incredible holding power, easily handling everything from securing tarps to hanging gear. Setting them up on my RV windows was a breeze, and they stayed firmly in place throughout our entire trip, even in windy conditions. If you need reliable and heavy-duty suction cups for your adventures, look no further – these are a five-star essential!

I just got them and they look and seem very good. I do hope that the company can make an effort to reduce the plastic bags though. Each of the 4 suction cup clip setups came in their own individual bags. Those 4 bags were in another bag. That bag was in yet another bag. 6 bags for 4 identical items sold as 1 package. Please, less plastic!!!! Counting on consumers to deal with the leftover materials is the biggest part of the problem. Stop it at the beginning, not the end. If the public doesn't end up with it, the public won't litter with it and the landfills won't get it. Use better materials for packaging that won't harm the environment, please! Our seas are becoming filled with plastics.

Wow - these stick really well (almost too well if that can be a thing) I used it instead of staking down to put the tent against a car and worked better than imagined.

They suck...really! They hold like nothing else!

The adhesive sticks to glass like ... well, GLUE. Meaning removing them from glass is a chore. No need for the suction to work, the glue does it. So unless you're looking for a permanent fixture, look elsewhere. These are not useful for temporary on-and-off installations.

Works as stated.

Missing one of the tie downs. I saw this in other reviews and thought it was a fluke. Nope, not a fluke. The suction cups seem decent but it’s a no go if I’m short changed on what I paid for. Returning.