3M™ High Intensity Prismatic Reflective Sheeting 3930, White, 17.96875 in x 100 yd, 1 Roll/Case. 3M™ High Intensity Prismatic Reflective Sheeting Series 3930 is a non-metalized microprismatic lens reflective sheeting designed for use in the production of durable reflective traffic control signs and delineators that are exposed vertically in service.