"I Spy Pi" Math Headband - Child fabric_100-cotton Made of a stretchy material

Made of a stretchy material often used for bathing suits

she'll proudly sport her Election Day "sticker" - reminding everyone that she is the future of the United States of America

Lizard's leg and owlet's wing

Slithery tentacles and bestalked eyeballs

just right to keep the wispies in check for little hackers and engineers

"I Spy Pi" Math Headband - Child fabric_100-cotton Made of a stretchy materialWith this design, the delight is in the details AND the big picture. Up close, tiny mathematical symbols, diagrams, and numbers swirl around in pink and purple. But take a few steps back and a bigger picture emerges its the symbol for Pi, formed out of the negative space.