Artec Block Perfect Mass SetArtec Block Perfect Mass Set Have fun making and learning math! 280 pieces with textbook Package size: 216 x 242 x 213 mm [Basic Squares] Red, blue, water, yellow, light green x 24 each, pale orange, light gray, brown, white, black x 8 each [Half B] Red, blue, water, yellow, light green, pale orange, light gray, brown, white, black x 4 each [Triangle A] Red, blue, water, yellow, light green, pale orange, light gray, brown, white, black x 8 each ABS