Magnetic fraction circles. 

 - Fraction circles, each disc measuring 12cm in diameter and 7mm thickness in 9 colors.  
<br/><br/> Consists of 1, 1/2, 1/3, 1/4, 1/5, 1/6, 1/8, 1/10 and 1/12. Total of 51 pieces. 
<br/><br/><label>Dewey Class. No.: </label>KIT 513.26 M274