Memtes Marble Run Race Coaster 105 Piece Set with 75 Building Blocks Plus 30 Race Marbles Learning Railway Construction Maze Toy Game Marble race deluxe set contains curved tracks, chutes and ramps that fit together in many variation Set includes 75 connectors in various shapes and 30 colorful marbles Helps build your child's problem solving and motor skills ans challenges your child's imagination Setup multiple entry points to create an exciting roller coaster Step-by-step Instructions sheet included