A:  Hello, this product works best on surfaces that have not texture as glass is completely smooth. However, our blue foamed outdoor strips can be used on Vinyl. Let us know if you have other questions at 800-934-7355 and reference this case #37287799.

A:  I would say no. I bought them to hold a wreath on the back door glass and it couldn't even handle that. I followed the instructions to the letter. The sticky part stayed on the glass and the rest fell off. Super disappointing.

A:  No. They are for smooth surfaces. They last longest on windows (mine are intact 1 year and counting). They also stick to siding, but mine fell after 3 or 4 months.

A:  Thank you for your interest in our products. Unfortunately, this product is tested and designed for windows and may refer to the packaging. We do not have a product at this time that we can recommend for the use on brick due to its porous and textured nature. If you need further assistance, please connect with our team on our website www.command.com using the “contact us” and reference this #36263419

A:  Yes... it will adhere to aluminum, but be sure to clean the area first using alcohol and then letting it dry properly. Once the hook is on, I usually wait an hour before putting any weight on the hook. But that's' just me being super cautious.

A:  No, it must be a smooth surface. Mike

A:  Thank you for your question. The Clear Window Hook will work best on flat, smooth glass and do not recommend using any Clear on textured glass or any other textured surfaces. If you have other questions or wish to discuss further, our team can be reached at 1-800-934-7355 Monday - Friday 8:00am - 4:30pm CT and reference this #23420900.

A:  I would say "no" it wouldn't hold once the weight is on. It might appear to hold, but you really need that full, uninterrupted "foot print" of the hook to support the weight. Would probably fall off from temperature changes. It might work if you use say a 5 lb. hook in place of a 2 or 3 lb. hook.