These decals are educational and decorative... but also interactive! Experts say that bright, bold colors can positively stimulate a childes senses and positively contribute to his or her development. Learn colors and counting with the help of our wall stickers! Since RoomMates can be removed and repositioned any time, you can move these numbers around as often as you please. Great in any bedroom, nursery, playroom, or classroom! Complete the design with our Colorful Dots and Colorful Alphabet wall decals (both sold separately). Decal(s) sizes - 2 inch x 1 inch to 3 inch x 4.5 inch; Easy to apply - just peel and stick; Applies to any smooth, clean, flat surface; product may not adhere to unclean, textured, recently painted, or nonstick surfaces; Removable and repositionable with no sticky residue left behind; Printed on a safe, high quality material that is free of harmful chemicals like phthalates and lead; Reuse from one space to the next; Perfect for both renters and homeowners.