Learning Resources Jumbo Polyhedral Dice (Set of 5). Add some extra fun to dice games with these colour soft foam polyhedral dice! Includes dice with 4, 8, 10, 12 and 20 sides. Use individually or in small groups to practice addition, subtraction, greater and less than and more! Includes activity guide. Sides of dice measure approximately 7.5cm. Suitable for ages 6+.