4515 - 3/16" X 3/16" OPAQUE WHITE POLYSTYRENE SIDEWALK

3/16" (4.7 mm) X 3/16" (4.7mm) SQUARES, X .013" (.33mm) GROOVE SPACING.
.040" THICK. 
LIGHT GROOVE FOR PAVING.
GROOVE SPACING IS CENTER TO CENTER OF GROOVES

1 sheet pack