The Marble Runs Toy Blocks Made from High Quality ABS. It is non Toxic, making it safe for children to DIY with smooth hand-feeling. It is easy to assemble and Intellectual Development is involved. Various games can be played, it can develop hand-eye coordination, logical thinking, creativity, colour and shape recognition, spatial imagination ability, patient and problem-solving skills FEATURES: Creative slide block 133pcs Let the ball into the S type slide smoothly Funnel, rotating around the funnel Elegant and vivid Safe and durable Easy to assemble PRODUCT DIMENSIONS: