Had people at work slipping as they walked across the cross walk during the summer last year so I was puzzled knowing it wasn't ice , How were they slipping ? So when I went to check out the area I found the white stripping was lifting and a fine dust covered each stripe making it slick , I immediately new this was the spheres ( or what not )that makes the G finish and went for a broom and dust pan , Luckily the wind came up and blew it all over the place and I wasn't able to get enough of the clean product