Thick lamination assures the durability of this two-sided Classification Board, a Focus original.Sixteen bars come in four different colors and four different lengths.One side of the board allows sorting by color and the other side by size.As they progress, children will eventually learn to classify by both traits. Additionally, one side helps relate the colors with their word names, blue, red, yellow and green, while the other side teaches the comparatives and superlatives longest, longer, shorter and shortest. The 17-piece kit comes complete with activity suggestions and math lessons.This is a fun tool for the young child to learn classification. Classification Board................................$16.95