Roylco’s Light Learning Rocks collection features 8 different nature-inspired shapesacross 6 colors, produced in a beautiful transparent material to promote color learning &sensory exploration. The included play guide is a card deck of 36 pictures and patterns,sequences and stacking challenges that range in difficulty. STEAM Play Benefits: Sensory exploration and Sequencing & patterning. Includes 48 Light Learning Rocks (8 designs in 6 colors) Play guide. Age 4+ Made in USA