wrote:

Just go to http://www.microchipcatflaps.co.uk/ scroll down to the
bottom of the page to order and enter code "CRAZYCATS" at the Google
Checkout page.

Note: Direct from the designer and manufacturer in Guernsey or a number
of local UK Vets it costs £104.95 inc delivery.
http://www.petporte.com/buy3.htm

--
Adrian C