16mm (5/8) 6-sided Round Cornered Opaque Math Operator Dice, 4 Function, Multiplication, Division, Addition, Subtraction (+.-,X,/), manufactured by Koplow Games. Priced per die.

16 mm = 5/8 = standard-sized. See our FAQ for more dice questions.

Price is per individual die.

This dice is OPAQUE, meaning you cannot see through it.

This dice has rounded corners, for easier tumbling.

Attention Teachers: Great for educational use!