I received the Command picture hanging kit from 3M. What an awesome kit. The variety of sizes are perfect for hanging a variety of pictures in a grouping. I am always rearranging pictures and not having holes in the walls opens up so many more possibilities. The back of the package shows picture sizes appropriate for each hook and the container makes it easy to keep everything in one place. I'll be buying another kit for the pictures in my office. The kit would also be great to add to the pile of essentials for students heading to college next month. Colleges and landlords hate nail holes. This would be perfect.