1Clear Gold Numbers: Each surface of the dice is printed with clear numbers in gold color, which is different from the color of the dice itself and easy to read. 2Polyhedral: Different from the traditional six sided dice, this 2 color plastic dice set adopts polyhedron design with different shapes, more attractive and has comfortable hand feel. 3Waterproof and Durable: Made of selected plastic material, the polyhedral plastic dice is safe, waterproof, anti oxidation, durable and practical. 4Applications: Polyhedral dice set is applicable to various interactive games, mini games, education, entertainment and school supplies. Turn math teaching into fun games, help develop children's intelligence. 528 Dice Cubes in 4 Set: There are a total of 28 of polyhedral dice in 4 set, which can meet different use needs. It is portable, convenient and practical.