1 litre units.
Same as this -
http://cgi.ebay.co.uk/GEARBOX-OIL-TO...sid=p1638.m118
Spec sheet -
http://www.lubadmin.com/upload/produ...ang_1/1205.pdf
1 litre bottle - £6.50 posted.
4 x 1 litre bottles (clio williams gearbox is 3.3litres) - £22.50 posted.