• Thickening the transparent pipe can improve the visibility of beads rolling, exercise children's visual tracking ability and improve concentration;
• The magnetic force is strong and stable for a long time;
• Large size is suitable for young children to grasp;
• Transparent drilling surface design, refraction dazzling light and shadow effect;
• From plane to solid, play with enlightenment geometry knowledge;
• Seamless connection process, integrated forming more resistant to fall, ABS material more secure.