"Simply place these decals on the floor to indicate proper spacing when students line up. A fun addition to classroom management tools that double as décor this set of clings comes with a Dr Seuss design featuring The Cat in the Hat. Making it even easier to give learners direction there are larger decals to note where the line leader and the caboose stand. Rotate your students forward each time you line up. Clings to any smooth surface then comes off easily after use. Vinyl. (31 pcs per unit) Sheets 17 x 22.