Don' t you wish to have your child to spend more time playing action games, developing useful skills and interacting with friends? Secure mounting of parts together allows construction set to stand steadily without falling apart. The marble run coaster set is the best gift for kids, boys and girls. Feature - Color: As shown. - Material: Plastic. - Size: 34x21.5cm. - Both hands on both sides of the handle,practice open and close action Familiar with the action after,place the ball on the track to rolling, when the ball rolls to the end of the S-shaped track,change the orbital direction Let the ball continue to move in orbit,try not to drop. - New children's toy training toys both hands can move the wrist and arm muscles to make them more flexible and powerful. Strengthen action coordination and flexibility The game process needs to keep an eye on the ball while the brain controls the hands and responds in a timely manner. - Ability cultivation,interest cultivation,start the brain,intellectual development,sensory ability cultivation,hand eye coordination. - It is very suitable for children over 2 years old,and kindergarten,early education center and other institutions of sensory training equipment.