Build, Create And Learn With The Leapfrog Leapbuilders Shapes & Music Castle Set .30-Leapbuilders Blocks Include An Electronic Smart Star Cube That Combines Block Play And Learning Content .Insert The 10 Double-Sided Learning Blocks Into The Interactive Smart Star To Hear Sounds And Phrases That Introduce Shapes And Instruments .Press The Question Button To Hear Requests To Find Specific Blocks In The Set. Press The Music Button For Melodies And Learning Songs .Hear Four Learning Songs And Five Melodies By Pressing The Music Button .Build On Top Of The Interactive Smart Star Cube To Trigger Fun Sound Effects .90+ Playful Sounds And Phrases About Shapes And Instruments For Your Child To Discover .Suitable For Children Ages 2 To 5 Years .