Die-cut magnetic shapes come on an 8-1/2" x 11' easy punch out sheet. Great for use in the classroom or home for developing math skills! Use on magnetic whiteboards, steel lockers, refrigerators, and more. Write-on/Wipe-off surface allows use with dry erase markers or chalk pens! Each pack includes 16 pieces. Sold as 3 packs for a total of 48 pieces.