Bisazza Blends 'Vetri Blends' Oslo Blends consist of variations of 20 x 20 mm Italian Glass Mosaic Tiles to create stunning colour combinations. Oslo contains: VTC 20.09 and VTC 20.37 Tiles. Order Module: 2.07 sq metres. Price is per square metre. Stucco/Grout Fillgel Plus - 1101 Bianco Alabastro. We would always recommend Bisazza mosaic tiles are bought with the optional installation kit.