Geberit Sigma 50 White Flush Plate for UP320 Cistern. The all metal mechanism provides a very solid feel that is noticeable over the less expensive plastic versions. The glass front is finished beautifully and I don't think the website photos do it justice.

Brand Name	Geberit
Colour	White
Material	glass
Manufacturer Model No	115.788.11.5
Type	Flush Plate
Certifications Met	N/A
Features	Water-saving dual flush actuation, Surfaces made of glass, stone, wood or metal, Base unit made of durable die-cast zinc, Frameless design, Suitable for Geberit DuoFresh module, Easy-to-clean coated actuator buttons, Sound-absorbing actuator rods, Tool-free fast adjustment