Serri Sandal Serri Sandal Transparent vynalite upper with manmade sole. Made in China. Leather lining. Hourglass-shaped perspex heel. Approx 100mm/ 4 inch heel. TONR-WZ472. SERRI. Based out of Australia, the Tony Bianco brand embraces a mix of the contemporary, the classic, and the cool. Their signature can be seen in the use of high quality materials and a keen eye for detail that is used to create on-trend pieces that will survive the test of time.