Evergreen – #4506 8,5mm X 8,5mm OPAQUE WHITE POLYSTYRENE SQUARE TILE, 15 x 30cm

1/3″ (8.5 mm) X 1/3″ (8.5mm) SQUARES, X .036″ (.90mm) GROOVE SPACING.
.040″ THICK.
HEAVY GROOVE FOR TILE.
GROOVE SPACING IS CENTER TO CENTER