Reddit reviews Marble Run Sets for Kids Activities - Marble Galaxy Fun Run Set Game - Translucent Marble Maze Race Track Indoor Toys - Educational STEM Toy Building Construction Games - 90 Pcs & Glass Marbles

4 DIFFERENT IMMERSIVE BUILDS: This marble run set includes 20 glass marbles and 70 building blocks that you can assemble in 4 different ways! In this way, your child can learn how to build many different tracks with the different accessories. The marble galaxy pieces are all translucent, so the racing marbles are all visible!GROW YOUR KIDS’ COGNITIVE ABILITIES: Stimulate your kids’ creative problem solving skills as they figure how to assemble the pieces to form their own marble run build. The process of putting the pieces together hone in many important aspects like spatial awareness,imagination,motor skills,deep interest in science, engineering and technology subjects and patience.EASY LOCK HIGH QUALITY ABS MATERIAL: Your kids’ safety is our top priority. We have used premium ABS plastic to create a 100% non-toxic marble run track. In addition, the edges of the marbles building set are all smooth to prevent injuries while the easy lock pieces provide sturdy and stable construction for endless loops of the marble run.EASY ASSEMBLE FUN GUIDE: Packed along with a 12-page user guide to jump start your child’s creativity. The guide displays marble run constructions of 4 difficulty levels: Easy, Medium, Hard, and Hardest.It will be 4 different levels of fun!PORTABLE STORAGE GIFT BOX: Marble Galaxy is packed in a gift box. Be it whether you are carrying around or giving It as a present, the well-designed box fulfills the needs. The toddlers will definitely enjoy memorable moments with Marble Galaxy at indoors and outdoors.