These are our acrylic one-sided paper clips. They measure 13mm wide x 26mm long in size. They come packaged 5 to a bag. One side is a peel and stick for acrylics or to stick to a wall, while the other side can easily have an acrylic applied with adhesive of your choice. The possibilities are endless. These make great gifts for teachers, secretaries, and any other special people in your life.