From the Manufacturer
Our Battat 18 piece sort and stack features ten stacking cups and eight shapes. Developed to promote hand and eye coordination, vibrant colors to stimulate the mind and eye. A great way to teach your toddler to count with colorful pictures and shapes.
Colorful cups stack one on top of the other or one inside the other. Geometric shapes puzzle fit through the bucket’s lid. Includes 9 cups, a bucket with lid and 8 assorted shapes.

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You have to put the stickers on yourself; if you screw up, you can’t move them. Be Careful! The product is great, my kid (10 months) loves it. He likes to chew on them and has almost eaten off the sticker on the “No. 1″ cup.