Constructive Playthings Manipulative Kit for Light Tables, 268/pkg

Includes one custom-designed 16"L x 12"W x 1-1/2"H clear vinyl tray complete with 10 vinyl work mats and 257 translucent/transparent manipulative components. Transforms the light table into a centre for children to sort, pattern, graph, estimate and more. Includes activity guide. (Crystal Connectors sold separately.) Ages 3+.