Glue DotsPoster Dots Dot N' Go Dispenser, Removable, Double-Sided, 3/8", .38 Inch, 1200 Dots, DIY Craft Glue Tape, Sticky Adhesive Glue Points, Liquid Glue Alternative, Clear, 6 Pack

I spent 4+ hours last night hanging up posters of various sizes (5x7 - 11x17) with these glue dots and when I woke up this morning almost all of the posters had fallen off the walls. I used what I thought was a good number of glue dots on each poster based on the size (sometimes an excessive amount that I didn't want to have to use), but the only ones that stayed up were the 5x7 posters that weigh practically nothing (That was with using 4 dots on something so small and I'm not even sure they will stay up). I would not recommend using these glue dots. I followed the steps listed on the back (cleaning my walls, using more dots, etc.) and it still didn't help.