5 Finger Mosaic felt-backed, square-edged 477x477 x 7mm (1.56' x 1.56' x 0.28") 4 Finger Mosaic felt-backed, square-edged 477x477 x 10mm (1.56' x 1.56' x 0.39") * 25.4 mm = 1 inch / 305 mm = 1 foot