Ive purchased these stikkis in the past for calendar numbers and other displays that get changed out regularly such as word walls and so forth. They hold up well as long as your room temperatures are well controlled. I was in a portable one year and it would get so hot that they would not stay stuck. eventually I had to remove them and add velcro to my items instead. they would slide and fall. But in a well controlled room they stay right where you stick them. They work best with a thicker material (most laminated cards work great)

These are easy to use. I tend to use sticky tack more, but these held on well to the cinder block walls.

Very easy to use and do not damage the surface it is stuck to. I recommend this product.

These were easy to use! They were easy to reposition at the beginning of the year, and whenever needed to adapt to the size of the artwork. These lasted all year without damaging the walls, and were easy enough for the kids to slide in their own work. Love these!