if she is obsessed with numbers, or, avoiding math altogether, these mathematic wall decals are the solution, literally! your loved one will go farther in school, if pondering these simple equations during "down time", and discussing them with you at bedtime. we think kids relate better to numbers when they are large objects, rather than lines drawn on paper. math by osmosis will also add the perfect aesthetic accent to her room. two color combinations available, please specify when ordering. the set comes with enough numbers to do tens (10x) multiplication. made of PVC film with removable, water-based adhesive.. registered trademark by tambino llc.