Pre Slit Edge Bright Material. Some tiers do not want to take the time in slitting this great " glowing" material. So Cascade is trying to make it easier for you. The pre slit material has two sheets includes for a total of 56 pre-slit strips that are 8 " long and are app .082" wide. Colors, Fl. Pink, Fl. Orange, Fl. Yellow / Chartreuse. We also offer a combo package. Three sheets with 28 strips of all three colors. Fl. Pink, Fl. Orange and Fl. Yellow / Chartreuse.