Udouto Montessori Busy Board For Toddlers 1-3, Wooden Busy Board With Led Light, Switch Board Car Ride Airplane Travel Toys, Chr1. This Wooden Led Busy Board Integrates Fun And Education, With Multiple Led Light Modes, Manually Adjustable Brightness And Switching Colors, The Lights Work With The Organs On The Busy Board To Stimulate Children'S Curiosity And Desire To Explore. 2. Adopting High Quality Environmentally Friendly Wood With Smooth Edges, The Led Lights Have Been Strictly Tested For Safety, No Strobe, No Sharp Edges And Corners To Protect Children'S Safety. 3.