These handlebar covers block the sun. These are lightweight and lacey so they are cool. There are heavier ones for the winter to keep hands warm. Even though the humidity is lower and the air feels a little cooler now, the sun is still very hot. Actually, we need sun protection any season. Even in typhoon season.
The white painted diamond in the street alerts drivers that there is an intersection ahead. There are warnings to slow down painted on the street, too.